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The Istmeña folded tlayuda from Oaxaca's Isthmus of Tehuantepec: a smaller, crunchier base spread with asiento and black beans, filled with dried shrimp from the lagoons and crumbled queso seco istmeño, toasted on a comal until it cracks.
This is an Istmeña dish. Not from the Valles Centrales of Oaxaca, where the tlayuda spreads wide as a bicycle wheel and gets draped in quesillo. This comes from the Istmo de Tehuantepec, from Juchitán and Tehuantepec city, where the Zapotec women who run the markets fold their tlayudas in half, stuff them with frijol negro and camarón seco from the lagoons, and toast them on a comal until the outside cracks under your teeth and the cheese inside goes soft.
The difference starts with the base. The Istmeña tlayuda is smaller, thinner, crunchier than its highland cousin. The fat is asiento, not manteca. Asiento is the dark sediment that settles to the bottom of the pot when pork lard is rendered: concentrated, smoky, slightly bitter, spread thin on the tortilla like a primer before anything else goes on. If you have never tasted asiento, you do not know what a tlayuda is supposed to taste like. La manteca es el sabor, but the asiento is the soul.
The camarón seco comes from the lagoons of the Istmo, the Laguna Superior and Laguna Inferior, where fishermen have harvested and dried shrimp for generations. The Zapotec women at the mercado in Juchitán sell it by the kilo from enormous baskets, and the smell hits you from three stalls away. You toast it lightly on a dry comal to wake up the brine and the sweetness. The queso seco istmeño is the other anchor: hard, crumbly, salty, with no equivalent outside the region. Do not use quesillo here. Quesillo belongs to the Valles Centrales version. Cada estado, su propia cocina, and in Oaxaca, cada region también.
I collected this recipe from a señora named Doña Irma at the mercado in Juchitán in 2014. She folded three tlayudas while talking to me without looking down once. Her hands knew the proportions by feel: a smear of asiento, a spoonful of beans, a fistful of dried shrimp, a scatter of cheese, fold, press, onto the comal. She told me her mother taught her, and her mother before that. The recipe was never written. It lived in the hands. Now it is in my notebook, and now it is in yours. Saber cocinar es saber vivir.
The tlayuda, whose name may derive from the Nahuatl 'tlao-li' (shelled corn) or from Zapotec terms for large tortilla, has anchored Oaxacan market economies since at least the colonial period, when it served as both food and edible plate for market-day meals. The Istmo de Tehuantepec variant developed independently from the Valles Centrales version due to the region's coastal geography and its access to dried seafood from the Laguna Superior and Laguna Inferior, lagoon systems that have sustained Zapotec fishing communities since pre-Columbian times. The Istmeña tradition of the doblada, folding the tlayuda rather than serving it open-faced, reflects the practical needs of market vendors and travelers in a region whose Zapotec matriarchal market system, dominated by women known as Tehuanas, required portable, self-contained meals that could be eaten standing at a market stall or carried on the road.
Quantity
4
10 to 14 inch thin, large, partially dried corn tortillas
Quantity
6 tablespoons
divided
Quantity
2 cups
with 1/4 cup of their broth
Quantity
1 cup (about 3 ounces)
Quantity
1 cup
crumbled
Quantity
15
stemmed
Quantity
2 medium
Quantity
2
unpeeled
Quantity
1/2 teaspoon, plus more to taste
Quantity
for serving
| Ingredient | Quantity |
|---|---|
| tlayudas istmeñas or standard Oaxacan tlayudas10 to 14 inch thin, large, partially dried corn tortillas | 4 |
| asiento (dark sediment from rendered pork lard)divided | 6 tablespoons |
| cooked black beans (frijoles negros de olla)with 1/4 cup of their broth | 2 cups |
| dried shrimp (camarón seco) | 1 cup (about 3 ounces) |
| queso seco istmeño or queso seco oaxaqueñocrumbled | 1 cup |
| dried chile de árbolstemmed | 15 |
| Roma tomatoes | 2 medium |
| garlic clovesunpeeled | 2 |
| kosher salt | 1/2 teaspoon, plus more to taste |
| lime wedges (optional) | for serving |
Heat a dry comal or heavy skillet over medium-low heat. Spread the dried shrimp in a single layer and toast for two to three minutes, stirring occasionally, until they turn a shade deeper and the kitchen fills with a concentrated ocean smell, briny and sweet at the same time. Do not walk away. Dried shrimp go from toasted to scorched in seconds. Remove them to a bowl and set aside. They will crisp further as they cool.
On the same dry comal over medium heat, lay the stemmed chiles de árbol, the whole Roma tomatoes, and the unpeeled garlic cloves. Toast the chiles for about 45 seconds, turning them once. They should darken and blister but not blacken. Remove them. Let the tomatoes and garlic stay on the comal longer, turning occasionally, until the tomato skins are charred in patches and the garlic cloves are soft when you press them, about 8 to 10 minutes. Peel the garlic.
Transfer the toasted chiles, roasted tomatoes, peeled garlic, and salt to a blender or molcajete. Blend or pound into a coarse, fiery salsa. It should have texture, not be smooth. Taste it. This salsa is meant to be aggressive: smoky, direct, and hot. Chile de árbol does not play games. If it needs more salt, add it now. Set aside.
In a small skillet or clay cazuelita, heat 2 tablespoons of asiento over medium heat until it melts and shimmers. Add the cooked black beans with their broth. Mash them in the pan with the back of a wooden spoon or a bean masher, stirring and pressing until you have a thick, spreadable paste. It should hold its shape on a spoon, not run. If it is too thick, add another tablespoon of broth. If too thin, keep cooking. Season with salt. The paste should taste rich, earthy, and slightly smoky from the asiento.
Take one tlayuda and spread a tablespoon of asiento across the entire surface, edge to edge. The asiento is the foundation. It soaks into the tortilla and gives it that smoky, porky depth you cannot get from butter, oil, or plain lard. Over one half of the tlayuda, spread a quarter of the bean paste in an even layer. Scatter a quarter of the toasted dried shrimp over the beans. Crumble a quarter of the queso seco istmeño on top. Fold the empty half over the filled half and press gently. Repeat with the remaining three tlayudas.
Heat the comal over medium heat. Place a folded tlayuda on the dry comal and press down lightly with your hand or a spatula. Cook for three to four minutes on the first side, until the surface is deeply golden with dark char spots and the tortilla is rigid and crisp. Flip carefully and toast the second side for another three minutes. The queso should be softening inside and the edges should crack when you press them. That crack is the sound of the Istmo. Repeat with remaining tlayudas, keeping finished ones warm in a cloth-lined basket.
Cut each doblada in half or serve whole on a plate. Spoon the salsa de chile de árbol on top or set it alongside in a small bowl for each person to dose their own. Squeeze lime over the whole thing. There is nothing else to add. The asiento, the beans, the dried shrimp, the queso, and the chile do all the talking. Recetas probadas y garantizadas.
1 serving (about 310g)
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