Oaxaca, southern Mexico — the defining street food of the Central Valleys, consumed day and night
The tlayuda is Oaxaca's most iconic street food: a large, partially dried corn tortilla griddled until crisp at the edges but still slightly flexible at the centre, topped with a smear of refried black beans, Oaxacan quesillo (string cheese), and any combination of tasajo (thinly sliced dried beef), chorizo, or chapulines (toasted grasshoppers). The tortilla itself is the technical foundation. Tlayuda tortillas are larger than standard corn tortillas — typically 30 to 40 centimetres across — and are made from masa that is slightly thicker and less hydrated than everyday tortillas. They are cooked first on a comal, then moved off the direct heat and allowed to dry partially until they take on a leathery, semi-rigid texture. This drying stage distinguishes the tlayuda from a simple corn tortilla. Beans are Oaxacan black beans, slow-cooked until very soft, then fried in lard (or black bean paste, pasta de frijoles negros) until spreadable. The paste is applied generously across the entire surface of the tlayuda, acting as both flavour and structural adhesive. Quesillo — Oaxacan string cheese — is pulled into ribbons and layered over the beans. The tlayuda is then placed back on the comal or over wood coals until the cheese melts and the edges of the tortilla achieve full crispness. Tasajo, which has been dried and briefly grilled, is layered on top, along with shredded cabbage dressed with lime, a spoonful of salsa, and sometimes a smear of Oaxacan-style guacamole. The result is a dish that offers simultaneous textures: crackling edges, a yielding centre under the bean layer, melted cheese, and the char and chew of grilled meat.
Smoky, savoury, and richly textured — earthy black beans, milky melted cheese, charred meat, and the mineral depth of dried corn
Dry the tortilla partially before topping — the semi-rigid leathery texture is essential Use Oaxacan black bean paste rather than whole beans for even coverage and adhesion Quesillo must be pulled into ribbons, not sliced, so it melts evenly across the surface Finish over direct heat or coals to crisp the edges fully while the centre remains slightly yielding Grill tasajo separately at high heat — it should have char marks and be served warm
Brush the outer edge of the tortilla with lard before the final crisping for enhanced flavour and colour Chapulines (toasted grasshoppers with lime and salt) are the most authentically Oaxacan topping — worth sourcing A thin smear of Oaxacan-style guacamole under the beans adds richness without weight For service, cut into quadrants with a pizza wheel rather than attempting to fold Oaxacan string cheese can be substituted with young Chihuahua or queso fresco in a pinch
Using a fresh, fully pliable tortilla — it will become soggy under the bean layer Substituting mozzarella or other melting cheeses that lack quesillo's milky, stringy character Heaping toppings too high at the centre, preventing the edges from crisping properly Using canned or pre-seasoned beans rather than freshly cooked Oaxacan black beans Not serving immediately — tlayudas deteriorate quickly as steam from fillings softens the base