The emblematic festival dish of Aguascalientes, named for the Feria de San Marcos. Poached chicken — and in many versions a little pork as well — is served under a tomato-based sauce brightened with fruit and given an edge by serrano or pickled chiles. It comes plated on a bed of lettuce with potatoes and pickled chiles on the side, the sauce sweet-sharp and rust-red rather than deeply spiced. Sold by the thousands during the fair, it is the plate most people in the state name when asked for their food.
Pollo de San Marcos takes its name from the Feria Nacional de San Marcos in Aguascalientes, the country's best-known regional fair, held annually around the April feast of Saint Mark and documented since 1828. The dish is the fair's signature plate, served in enormous quantity through the festival weeks. A fond local legend credits its creation to a rancher's wife — often called doña Lala — who is said to have married chicken with pork and a fruited sauce inspired by her hacienda garden; the tale is widely repeated but not documented, so it belongs to the fair's folklore rather than to verified record. What is certain is the dish's identity as the table of the San Marcos fair, and through it of Aguascalientes itself.
The chicken is tender and clean-tasting from poaching, and the sauce is the point: a tomato base turned sweet-tart by fruit, with the round warmth of cinnamon and clove behind it and a clear chile bite — usually serrano, often pickled — cutting across the sweetness. Eaten with the cool lettuce, soft potato, and a vinegary pickled chile on the side, each forkful swings between sweet, sour, and spicy. It is bright and lively rather than rich and heavy, food built for eating outdoors in a crowd.
The chicken is gently poached so it stays moist and gives up broth that goes back into the sauce — overcooking dries it, since there is no long braise to rescue it. The sauce balances three forces: tomato for body and acidity, fruit for sweetness and aroma, and chile plus a little vinegar from the pickled chiles for the sharp edge that keeps it from cloying. Whole spices — clove, allspice, and the soft local cinnamon — are simmered in and add background warmth without making it a dark mole. Some cooks roast the tomato, onion, and garlic first for a deeper, slightly smoky base before blending.
Variations
Recipes split between a simpler roasted-tomato-and-chile sauce and a richer one built on mulato, ancho, and guajillo chiles with clove, allspice, and Aguascalientes cinnamon. Many versions combine chicken with pork; chorizo, potatoes, and pickled chiles are common companions on the plate. The fruit varies with what is on hand and the cook's hand, and the heat is dialed up or down through the serrano and the pickled chiles served alongside.
On the Palate
Where Pollo de San Marcos sits in the Mexican flavor cloud
Ingredients
Serves 4
How it's made
7 steps · 35 min active + 25 min waiting
- 120 min
Poach the chicken pieces in salted water with onion and garlic until just cooked through; reserve the broth.
Watch outPull the chicken the moment it's cooked through and no further — with no braise to rescue it, a few extra minutes turns the poached meat dry and stringy.
- 212 min
Roast or simmer tomatoes with onion and garlic until soft.
- 34 min
Blend the tomato base with a little fruit and a serrano chile, loosening with reserved broth.
- 415 min
Simmer the sauce with clove, allspice, and a small piece of cinnamon until lightly thickened, seasoning with salt and a little vinegar.
Watch outSimmer only until the sauce lightly coats the back of a spoon; the vinegar should read as a bright edge, not a sour bite, so add it a little at a time and taste.
- 56 min
Warm the poached chicken in the sauce to take on its flavor.
- 612 min
Boil and slice potatoes, and have pickled chiles ready.
- 73 min
Plate the chicken over shredded lettuce, spoon the sauce over, and arrange potatoes and pickled chiles alongside.
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