The first bite of chiles en nogada, a traditional Mexican dish eaten around the country's independence celebrations, sends a shiver. The salty skin of the poblano chile crunches, the pomegranate seeds that dot it explode between your teeth and the flavors combine to dance in the mouth. Almost instantly, the creamy walnut sauce permeates the meat filling, and just when your palate asks, "What is this deliciousness?" the spices kick in and your senses ask for more.

This sensory cocktail isn't made in just any kitchen. And it can take hours to prepare — meaning only some chefs and true fans of the complicated recipe are willing to sharpen their knives and dedicate two days each year to stuffing the relatively unspicy chiles.

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In this Sept. 6, 2019 photo, head cook Erick Perez adds raisins, almonds, pine nuts, and multiple types of fruit to ground meat as he prepares the filling for chiles en nogada, in the kitchen at Arango restaurant in Mexico City. It can take hours to make one of the jewels of Mexican gastronomy, decorated in the green, white and red of the country's flag, and the sweet and salty dish is served only in the weeks around Mexico's independence celebrations. (AP PhotoRebecca Blackwell)

The first bite of chiles en nogada, a traditional Mexican dish eaten around the country's independence celebrations, sends a shiver. The salty skin of the poblano chile crunches, the pomegranate seeds that dot it explode between your teeth and the flavors combine to dance in the mouth. Almost instantly, the creamy walnut sauce permeates the meat filling, and just when your palate asks, "What is this deliciousness?" the spices kick in and your senses ask for more.
In this Aug. 26, 2019 photo, a waiter delivers chiles en nogada topped with pomegranate seeds, parsley, and walnut sauce to diners at Arango restaurant in Mexico City. It can take hours to make one of the jewels of Mexican gastronomy, decorated in the green, white and red of the country's flag, and the sweet and salty dish is served only in the weeks around Mexico's independence celebrations. (AP PhotoRebecca Blackwell)

The dish is traditionally eaten from July through September, and Cuatepotzo estimates he serves up to 100 plates each week during the season.
In this Sept. 13, 2019 photo, a cook roasts poblano peppers on the stovetop in preparation for removing the skin, as kitchen staff make chiles en nogada at Testal restaurant in downtown Mexico City. Testal has dedicated nearly an entire kitchen to the production of the emblematic dish, selling around 150 chiles per day, and attempting to more than double the 3000 chiles they sold last year during the short season. (AP PhotoRebecca Blackwell)

Versions of the dish's origin vary, but Ricardo Muñoz Zurita — another Mexican chef who is an expert in local cuisine — says that they were prepared for the first time on Aug. 28, 1821.
In this Aug. 26, 2019 photo, Jennifer Ramos, 28, visiting from Houston, Texas, eats chile en nogada with relatives at Arango restaurant in Mexico City. It can take hours to make one of the jewels of Mexican gastronomy, decorated in the green, white and red of the country's flag, and the sweet and salty dish is served only in the weeks around Mexico's independence celebrations. (AP PhotoRebecca Blackwell)

Nearly 200 years later, chiles en nogada are now a favorite of many.
In this Sept. 10, 2019 photo, a chile en nogada, topped with parsley, walnuts, and pomegrante seeds to resemble the Mexican flag, is delivered to a diner at El Sabor, a family-owned restaurant inside Juarez Market that for decades has been serving up chiles en nogada in the weeks leading up to Mexico's independence celebrations, in Mexico City. Although the 200 peso ($10.50) price tag at El Sabor is half that at high end restaurants, the traditional ingredients and hours of labor that go into making the sweet and salty dish mean it is still the priciest item on their menu, a seasonal treat for fans of the dish. (AP PhotoRebecca Blackwell)

Many restaurants try to put their own stamp on the dish, too. One ice cream shop offers a "nogada" flavor of walnuts, cheese, sherry, milk and sugar, while a hamburger joint promotes a chile on a bun with lettuce.
In this Sept. 13, 2019 photo, a cook assembles chiles en nogada for clients at Testal restaurant in central Mexico City. Testal has dedicated nearly an entire kitchen to the production of the emblematic dish, selling around 150 chiles per day, and attempting to more than double the 3000 chiles they sold last year during the short season. (AP PhotoRebecca Blackwell)

It called for 10 kilograms (22 pounds) of beef, loads of fruit and some ingredients which are available in any supermarket: pork, tomatoes, onions, figs, cinnamon, thyme, and oregano — in addition to others that few would have in their cupboard: panochera apples, milk pears and local peaches that only grow in the municipality of Calpan.
In this Sept. 13, 2019 photo, head of production Martha Lopez adds more numbers to the stack of cards, one of which is placed on the plate with each chile en nogada, at Testal restaurant in downtown Mexico City. Each chile en nogada is served with a card displaying it's number and a scroll recounting the history and importance of the dish. (AP PhotoRebecca Blackwell)

In this Sept. 13, 2019 photo, head of production Martha Lopez adds more numbers to the stack of cards, one of which is placed on the plate with each chile en nogada, at Testal restaurant in downtown Mexico City. Each chile en nogada is served with a card displaying it's number and a scroll recounting the history and importance of the dish. (AP PhotoRebecca Blackwell)
In this Sept. 10, 2019 photo, Maribel Sanchez carries a chile en nogada prepared for a diner at El Sabor, a family-owned restaurant inside Juarez Market that for decades has been serving up chiles en nogada in the weeks leading up to Mexico's independence celebrations, in Mexico City. Although the 200 peso ($10.50) price tag at El Sabor is half that at high end restaurants, the traditional ingredients and hours of labor that go into making the sweet and salty dish mean it is still the priciest item on their menu, a seasonal treat for fans of the dish. (AP PhotoRebecca Blackwell)

In this Sept. 10, 2019 photo, Maribel Sanchez carries a chile en nogada prepared for a diner at El Sabor, a family-owned restaurant inside Juarez Market that for decades has been serving up chiles en nogada in the weeks leading up to Mexico's independence celebrations, in Mexico City. Although the 200 peso ($10.50) price tag at El Sabor is half that at high end restaurants, the traditional ingredients and hours of labor that go into making the sweet and salty dish mean it is still the priciest item on their menu, a seasonal treat for fans of the dish. (AP PhotoRebecca Blackwell)
In this Sept. 13, 2019 photo, a cook carries out finished chiles en nogada to be served to diners at Testal restaurant in downtown Mexico City. Testal has dedicated nearly an entire kitchen to the production of the emblematic dish, selling around 150 chiles per day, and attempting to more than double the 3000 chiles they sold last year during the short season. (AP PhotoRebecca Blackwell)

In this Sept. 13, 2019 photo, a cook carries out finished chiles en nogada to be served to diners at Testal restaurant in downtown Mexico City. Testal has dedicated nearly an entire kitchen to the production of the emblematic dish, selling around 150 chiles per day, and attempting to more than double the 3000 chiles they sold last year during the short season. (AP PhotoRebecca Blackwell)
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In this Sept. 6, 2019 photo, head cook Erick Perez adds raisins, almonds, pine nuts, and multiple types of fruit to ground meat as he prepares the filling for chiles en nogada, in the kitchen at Arango restaurant in Mexico City. It can take hours to make one of the jewels of Mexican gastronomy, decorated in the green, white and red of the country's flag, and the sweet and salty dish is served only in the weeks around Mexico's independence celebrations. (AP PhotoRebecca Blackwell)

The first bite of chiles en nogada, a traditional Mexican dish eaten around the country's independence celebrations, sends a shiver. The salty skin of the poblano chile crunches, the pomegranate seeds that dot it explode between your teeth and the flavors combine to dance in the mouth. Almost instantly, the creamy walnut sauce permeates the meat filling, and just when your palate asks, "What is this deliciousness?" the spices kick in and your senses ask for more.

In this Aug. 26, 2019 photo, a waiter delivers chiles en nogada topped with pomegranate seeds, parsley, and walnut sauce to diners at Arango restaurant in Mexico City. It can take hours to make one of the jewels of Mexican gastronomy, decorated in the green, white and red of the country's flag, and the sweet and salty dish is served only in the weeks around Mexico's independence celebrations. (AP PhotoRebecca Blackwell)

The dish is traditionally eaten from July through September, and Cuatepotzo estimates he serves up to 100 plates each week during the season.

In this Sept. 13, 2019 photo, a cook roasts poblano peppers on the stovetop in preparation for removing the skin, as kitchen staff make chiles en nogada at Testal restaurant in downtown Mexico City. Testal has dedicated nearly an entire kitchen to the production of the emblematic dish, selling around 150 chiles per day, and attempting to more than double the 3000 chiles they sold last year during the short season. (AP PhotoRebecca Blackwell)

Versions of the dish's origin vary, but Ricardo Muñoz Zurita — another Mexican chef who is an expert in local cuisine — says that they were prepared for the first time on Aug. 28, 1821.

In this Aug. 26, 2019 photo, Jennifer Ramos, 28, visiting from Houston, Texas, eats chile en nogada with relatives at Arango restaurant in Mexico City. It can take hours to make one of the jewels of Mexican gastronomy, decorated in the green, white and red of the country's flag, and the sweet and salty dish is served only in the weeks around Mexico's independence celebrations. (AP PhotoRebecca Blackwell)

Nearly 200 years later, chiles en nogada are now a favorite of many.

In this Sept. 10, 2019 photo, a chile en nogada, topped with parsley, walnuts, and pomegrante seeds to resemble the Mexican flag, is delivered to a diner at El Sabor, a family-owned restaurant inside Juarez Market that for decades has been serving up chiles en nogada in the weeks leading up to Mexico's independence celebrations, in Mexico City. Although the 200 peso ($10.50) price tag at El Sabor is half that at high end restaurants, the traditional ingredients and hours of labor that go into making the sweet and salty dish mean it is still the priciest item on their menu, a seasonal treat for fans of the dish. (AP PhotoRebecca Blackwell)

Many restaurants try to put their own stamp on the dish, too. One ice cream shop offers a "nogada" flavor of walnuts, cheese, sherry, milk and sugar, while a hamburger joint promotes a chile on a bun with lettuce.

In this Sept. 13, 2019 photo, a cook assembles chiles en nogada for clients at Testal restaurant in central Mexico City. Testal has dedicated nearly an entire kitchen to the production of the emblematic dish, selling around 150 chiles per day, and attempting to more than double the 3000 chiles they sold last year during the short season. (AP PhotoRebecca Blackwell)

It called for 10 kilograms (22 pounds) of beef, loads of fruit and some ingredients which are available in any supermarket: pork, tomatoes, onions, figs, cinnamon, thyme, and oregano — in addition to others that few would have in their cupboard: panochera apples, milk pears and local peaches that only grow in the municipality of Calpan.

In this Sept. 13, 2019 photo, head of production Martha Lopez adds more numbers to the stack of cards, one of which is placed on the plate with each chile en nogada, at Testal restaurant in downtown Mexico City. Each chile en nogada is served with a card displaying it's number and a scroll recounting the history and importance of the dish. (AP PhotoRebecca Blackwell)

In this Sept. 13, 2019 photo, head of production Martha Lopez adds more numbers to the stack of cards, one of which is placed on the plate with each chile en nogada, at Testal restaurant in downtown Mexico City. Each chile en nogada is served with a card displaying it's number and a scroll recounting the history and importance of the dish. (AP PhotoRebecca Blackwell)

In this Sept. 10, 2019 photo, Maribel Sanchez carries a chile en nogada prepared for a diner at El Sabor, a family-owned restaurant inside Juarez Market that for decades has been serving up chiles en nogada in the weeks leading up to Mexico's independence celebrations, in Mexico City. Although the 200 peso ($10.50) price tag at El Sabor is half that at high end restaurants, the traditional ingredients and hours of labor that go into making the sweet and salty dish mean it is still the priciest item on their menu, a seasonal treat for fans of the dish. (AP PhotoRebecca Blackwell)

In this Sept. 10, 2019 photo, Maribel Sanchez carries a chile en nogada prepared for a diner at El Sabor, a family-owned restaurant inside Juarez Market that for decades has been serving up chiles en nogada in the weeks leading up to Mexico's independence celebrations, in Mexico City. Although the 200 peso ($10.50) price tag at El Sabor is half that at high end restaurants, the traditional ingredients and hours of labor that go into making the sweet and salty dish mean it is still the priciest item on their menu, a seasonal treat for fans of the dish. (AP PhotoRebecca Blackwell)

In this Sept. 13, 2019 photo, a cook carries out finished chiles en nogada to be served to diners at Testal restaurant in downtown Mexico City. Testal has dedicated nearly an entire kitchen to the production of the emblematic dish, selling around 150 chiles per day, and attempting to more than double the 3000 chiles they sold last year during the short season. (AP PhotoRebecca Blackwell)

In this Sept. 13, 2019 photo, a cook carries out finished chiles en nogada to be served to diners at Testal restaurant in downtown Mexico City. Testal has dedicated nearly an entire kitchen to the production of the emblematic dish, selling around 150 chiles per day, and attempting to more than double the 3000 chiles they sold last year during the short season. (AP PhotoRebecca Blackwell)

In the kitchen of Arango, a Mexico City restaurant that opened last year, a smile spreads across the face of chef Alejandro Cuatepotzo when one speaks about the balance struck by the sweet and salty food.

In this Sept. 6, 2019 photo, head cook Erick Perez adds raisins, almonds, pine nuts, and multiple types of fruit to ground meat as he prepares the filling for chiles en nogada, in the kitchen at Arango restaurant in Mexico City. It can take hours to make one of the jewels of Mexican gastronomy, decorated in the green, white and red of the country's flag, and the sweet and salty dish is served only in the weeks around Mexico's independence celebrations. (AP PhotoRebecca Blackwell)

In this Sept. 6, 2019 photo, head cook Erick Perez adds raisins, almonds, pine nuts, and multiple types of fruit to ground meat as he prepares the filling for chiles en nogada, in the kitchen at Arango restaurant in Mexico City. It can take hours to make one of the jewels of Mexican gastronomy, decorated in the green, white and red of the country's flag, and the sweet and salty dish is served only in the weeks around Mexico's independence celebrations. (AP PhotoRebecca Blackwell)

The dish is traditionally eaten from July through September, and Cuatepotzo estimates he serves up to 100 plates each week during the season.

To do that, his staff of 14 chefs work eight days per month to prepare a recipe that dates to the 19th century and involves, in his case, 30 ingredients.

Cuatepotzo and chiles en nogada were born in the same place: the central state of Puebla.

In this Aug. 26, 2019 photo, a waiter delivers chiles en nogada topped with pomegranate seeds, parsley, and walnut sauce to diners at Arango restaurant in Mexico City. It can take hours to make one of the jewels of Mexican gastronomy, decorated in the green, white and red of the country's flag, and the sweet and salty dish is served only in the weeks around Mexico's independence celebrations. (AP PhotoRebecca Blackwell)

In this Aug. 26, 2019 photo, a waiter delivers chiles en nogada topped with pomegranate seeds, parsley, and walnut sauce to diners at Arango restaurant in Mexico City. It can take hours to make one of the jewels of Mexican gastronomy, decorated in the green, white and red of the country's flag, and the sweet and salty dish is served only in the weeks around Mexico's independence celebrations. (AP PhotoRebecca Blackwell)

Versions of the dish's origin vary, but Ricardo Muñoz Zurita — another Mexican chef who is an expert in local cuisine — says that they were prepared for the first time on Aug. 28, 1821.

Gen. Agustín de Iturbide had just signed a treaty giving Mexico its independence from Spain and was on his way to the capital when he stopped in Puebla, where nuns served him chiles en nogada to honor him and celebrate the end of colonization. For that reason, Muñoz Zurita says, the dish displayed the colors of Iturbide's army banner and the soon-to-be Mexican flag: green, white and red.

It also won the favor of Iturbide, who asked that he be served the dish again in Mexico City.

In this Sept. 13, 2019 photo, a cook roasts poblano peppers on the stovetop in preparation for removing the skin, as kitchen staff make chiles en nogada at Testal restaurant in downtown Mexico City. Testal has dedicated nearly an entire kitchen to the production of the emblematic dish, selling around 150 chiles per day, and attempting to more than double the 3000 chiles they sold last year during the short season. (AP PhotoRebecca Blackwell)

In this Sept. 13, 2019 photo, a cook roasts poblano peppers on the stovetop in preparation for removing the skin, as kitchen staff make chiles en nogada at Testal restaurant in downtown Mexico City. Testal has dedicated nearly an entire kitchen to the production of the emblematic dish, selling around 150 chiles per day, and attempting to more than double the 3000 chiles they sold last year during the short season. (AP PhotoRebecca Blackwell)

Nearly 200 years later, chiles en nogada are now a favorite of many.

According to Muñoz Zurita, it's almost "mythical" because it's so ephemeral: its key ingredients are only available three months of the year, so it isn't prepared outside of the season.

Some Mexicans spurn the dish because they find the combination of flavors disagreeable, but in general, it sets off a frenzy evident on social media, with images of chiles en nogada commonly shared before they're devoured.

In this Aug. 26, 2019 photo, Jennifer Ramos, 28, visiting from Houston, Texas, eats chile en nogada with relatives at Arango restaurant in Mexico City. It can take hours to make one of the jewels of Mexican gastronomy, decorated in the green, white and red of the country's flag, and the sweet and salty dish is served only in the weeks around Mexico's independence celebrations. (AP PhotoRebecca Blackwell)

In this Aug. 26, 2019 photo, Jennifer Ramos, 28, visiting from Houston, Texas, eats chile en nogada with relatives at Arango restaurant in Mexico City. It can take hours to make one of the jewels of Mexican gastronomy, decorated in the green, white and red of the country's flag, and the sweet and salty dish is served only in the weeks around Mexico's independence celebrations. (AP PhotoRebecca Blackwell)

Many restaurants try to put their own stamp on the dish, too. One ice cream shop offers a "nogada" flavor of walnuts, cheese, sherry, milk and sugar, while a hamburger joint promotes a chile on a bun with lettuce.

At Arango, chiles en nogada are listed for $17 (350 pesos), but they can also be found in popular eateries for $7 (150 pesos), with more affordable versions often substituting costlier ingredients like walnuts and pine nuts with less expensive ones.

On a recent day, Cuatepotzo scrawled his recipe for one of the jewels of Mexican gastronomy on a sheet.

In this Sept. 10, 2019 photo, a chile en nogada, topped with parsley, walnuts, and pomegrante seeds to resemble the Mexican flag, is delivered to a diner at El Sabor, a family-owned restaurant inside Juarez Market that for decades has been serving up chiles en nogada in the weeks leading up to Mexico's independence celebrations, in Mexico City. Although the 200 peso ($10.50) price tag at El Sabor is half that at high end restaurants, the traditional ingredients and hours of labor that go into making the sweet and salty dish mean it is still the priciest item on their menu, a seasonal treat for fans of the dish. (AP PhotoRebecca Blackwell)

In this Sept. 10, 2019 photo, a chile en nogada, topped with parsley, walnuts, and pomegrante seeds to resemble the Mexican flag, is delivered to a diner at El Sabor, a family-owned restaurant inside Juarez Market that for decades has been serving up chiles en nogada in the weeks leading up to Mexico's independence celebrations, in Mexico City. Although the 200 peso ($10.50) price tag at El Sabor is half that at high end restaurants, the traditional ingredients and hours of labor that go into making the sweet and salty dish mean it is still the priciest item on their menu, a seasonal treat for fans of the dish. (AP PhotoRebecca Blackwell)

It called for 10 kilograms (22 pounds) of beef, loads of fruit and some ingredients which are available in any supermarket: pork, tomatoes, onions, figs, cinnamon, thyme, and oregano — in addition to others that few would have in their cupboard: panochera apples, milk pears and local peaches that only grow in the municipality of Calpan.

The result explodes with the first bite in a marvelous marriage of origin, history and flavor.

In this Sept. 13, 2019 photo, a cook assembles chiles en nogada for clients at Testal restaurant in central Mexico City. Testal has dedicated nearly an entire kitchen to the production of the emblematic dish, selling around 150 chiles per day, and attempting to more than double the 3000 chiles they sold last year during the short season. (AP PhotoRebecca Blackwell)

In this Sept. 13, 2019 photo, a cook assembles chiles en nogada for clients at Testal restaurant in central Mexico City. Testal has dedicated nearly an entire kitchen to the production of the emblematic dish, selling around 150 chiles per day, and attempting to more than double the 3000 chiles they sold last year during the short season. (AP PhotoRebecca Blackwell)

 In this Sept. 13, 2019 photo, head of production Martha Lopez adds more numbers to the stack of cards, one of which is placed on the plate with each chile en nogada, at Testal restaurant in downtown Mexico City. Each chile en nogada is served with a card displaying it's number and a scroll recounting the history and importance of the dish. (AP PhotoRebecca Blackwell)

In this Sept. 13, 2019 photo, head of production Martha Lopez adds more numbers to the stack of cards, one of which is placed on the plate with each chile en nogada, at Testal restaurant in downtown Mexico City. Each chile en nogada is served with a card displaying it's number and a scroll recounting the history and importance of the dish. (AP PhotoRebecca Blackwell)

 In this Sept. 10, 2019 photo, Maribel Sanchez carries a chile en nogada prepared for a diner at El Sabor, a family-owned restaurant inside Juarez Market that for decades has been serving up chiles en nogada in the weeks leading up to Mexico's independence celebrations, in Mexico City. Although the 200 peso ($10.50) price tag at El Sabor is half that at high end restaurants, the traditional ingredients and hours of labor that go into making the sweet and salty dish mean it is still the priciest item on their menu, a seasonal treat for fans of the dish. (AP PhotoRebecca Blackwell)

In this Sept. 10, 2019 photo, Maribel Sanchez carries a chile en nogada prepared for a diner at El Sabor, a family-owned restaurant inside Juarez Market that for decades has been serving up chiles en nogada in the weeks leading up to Mexico's independence celebrations, in Mexico City. Although the 200 peso ($10.50) price tag at El Sabor is half that at high end restaurants, the traditional ingredients and hours of labor that go into making the sweet and salty dish mean it is still the priciest item on their menu, a seasonal treat for fans of the dish. (AP PhotoRebecca Blackwell)

 In this Sept. 13, 2019 photo, a cook carries out finished chiles en nogada to be served to diners at Testal restaurant in downtown Mexico City. Testal has dedicated nearly an entire kitchen to the production of the emblematic dish, selling around 150 chiles per day, and attempting to more than double the 3000 chiles they sold last year during the short season. (AP PhotoRebecca Blackwell)

In this Sept. 13, 2019 photo, a cook carries out finished chiles en nogada to be served to diners at Testal restaurant in downtown Mexico City. Testal has dedicated nearly an entire kitchen to the production of the emblematic dish, selling around 150 chiles per day, and attempting to more than double the 3000 chiles they sold last year during the short season. (AP PhotoRebecca Blackwell)