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Torta de Tasajo Oaxaqueña con Asiento y Quesillo

Torta de Tasajo Oaxaqueña con Asiento y Quesillo

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Oaxaca's market torta built on asiento-smeared bolillo, black bean paste, thin-cut tasajo grilled until the salt blooms, and hand-pulled quesillo that softens over the hot meat. Esto no es comida de un solo Mexico.

Sandwiches & Wraps
Mexican
Quick Meal
Weeknight
Comfort Food
15 min
Active Time
20 min cook35 min total
Yield4 tortas

This torta is from Oaxaca. Not from a restaurant menu that says 'Oaxacan-style.' From the market stalls inside the Central de Abastos, where the women who assemble these have been doing it for decades, where the smell of tasajo on the comal hits you three aisles before you reach the comedor.

The bread gets asiento. Both cut sides. Asiento is the dark, granular sediment from the bottom of the cazo where chicharrón is fried: pork fat with memory, caramelized, slightly bitter, rich in a way no other fat in Mexico replicates. No other state uses it this way. In Oaxaca, it goes on bolillos the way butter goes on toast in other countries, without measuring, without hesitation. Then the frijoles negros, also fried in asiento, spread thick as plaster. Then the tasajo, grilled fast and hot until the edges char and the salt blooms white on the surface. Then quesillo, pulled into long strings by hand and draped over the hot meat so it softens into something elastic and warm. Avocado, tomato, and a salsa made from chile pasilla oaxaqueño, the smoked chile that exists nowhere else with that exact fruity, smoky depth.

I first ate this torta in 2004, sitting on a plastic stool in the Central de Abastos with grease running down my wrist and brown paper on my lap. The woman who made it did not ask what I wanted. She said 'tasajo' and started building. I watched her hands: asiento, frijoles, carne, quesillo, aguacate, salsa, closed, wrapped, done. Thirty seconds. She had been making that torta since before I was born. I wrote down nothing that day because there was nothing to write down. The recipe was the hands. Recetas probadas y garantizadas.

Tasajo, thin-cut salted beef dried in the high-altitude sun of Oaxaca's Valles Centrales, has been a preservation staple since colonial-era cattle ranching expanded across the region, and the Central de Abastos market in Oaxaca city remains the epicenter of its commerce, where vendors drape the dark red sheets over wooden racks like curtains. Asiento, the caramelized pork sediment left at the bottom of the cazo after rendering chicharrón, exists as a bread spread and cooking fat almost exclusively in Oaxacan cuisine, a byproduct that no other Mexican state elevated to the status of essential ingredient. Quesillo, Oaxaca's hand-pulled string cheese, shares a stretching technique with Italian mozzarella but developed independently through colonial-era dairy practices in the Valles Centrales, where the town of Reyes Etla still produces the most prized versions and sends them across the state wrapped in blue plastic bags.

The technique, the tradition, and the story behind every dish.

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Ingredients

bolillos oaxaqueños or teleras

Quantity

4

split lengthwise

tasajo (Oaxacan thin-cut salted beef)

Quantity

1 pound

quesillo (Oaxacan string cheese)

Quantity

8 ounces

pulled into long strips by hand

asiento (dark pork lard sediment from chicharrón production)

Quantity

4 tablespoons

divided: 3 tablespoons for the bread, 1 tablespoon for the beans

ripe Hass avocado

Quantity

1

sliced

ripe tomato

Quantity

1 medium

sliced into 8 rounds

white onion (optional)

Quantity

for serving

sliced into thin rings

cooked black beans with their broth

Quantity

2 cups beans plus 1/2 cup broth

asiento or pork lard (manteca de cerdo), for the beans

Quantity

1 tablespoon

kosher salt, for the beans

Quantity

to taste

dried chile pasilla oaxaqueño (chile mije)

Quantity

4

stemmed

garlic cloves

Quantity

2

unpeeled

water, for the salsa

Quantity

1/4 cup

kosher salt, for the salsa

Quantity

1/4 teaspoon

Equipment Needed

  • Cast iron comal or heavy griddle
  • Heavy skillet for the beans
  • Molcajete or blender for the salsa
  • Bean masher or sturdy wooden spoon

Instructions

  1. 1

    Toast the pasilla oaxaqueño

    Heat a dry comal or cast iron skillet over medium heat. Lay the stemmed pasilla oaxaqueño chiles flat on the surface and press gently with a spatula for about 15 seconds per side. They are already smoked, so you are not toasting them raw. You are waking up the oils. The skin will puff slightly and the kitchen will fill with a smoky, fruity scent that smells nothing like a regular pasilla. That distinction matters. This chile is grown and smoked in the Sierra Mixe and the Cañada region of Oaxaca and it has no substitute. Set the chiles aside.

    Chile pasilla oaxaqueño is smoked, not sun-dried. It is a different chile entirely from the pasilla negro (dried chilaca) used in central Mexico. If your vendor does not know the difference, find a vendor who does.
  2. 2

    Roast the garlic

    On the same hot comal, place the two unpeeled garlic cloves. Let them sit for about five minutes, turning occasionally, until the skin is spotted dark and the flesh inside is soft when you press it. Peel them and set aside.

  3. 3

    Make the salsa

    Tear the toasted pasilla oaxaqueño into rough pieces and place in a blender with the peeled roasted garlic, the water, and the salt. Blend until you have a thick, rustic salsa with visible flecks of chile skin. It should not be perfectly smooth. Taste it. The flavor should be smoky and direct with a slow, moderate heat that builds. If you have a molcajete, use it instead of the blender. The texture from the stone changes the salsa, rougher, more broken, the way the market women in the Central de Abastos make it. Set aside.

    This salsa keeps in the refrigerator for up to five days. The smoky flavor deepens as it sits. Make a double batch if you want it on eggs, beans, or quesadillas through the week.
  4. 4

    Fry the black beans

    Heat the tablespoon of asiento or lard in a heavy skillet over medium heat. When it shimmers, add the cooked black beans and their broth. Mash with a bean masher or the back of a wooden spoon, pressing and folding until you have a thick, spreadable paste. The consistency should hold its shape on a spoon without running. If it is too thick, add a splash of bean broth. Season with salt. The asiento gives the beans a roasted pork flavor that oil cannot replicate. La manteca es el sabor. Keep warm.

    In Oaxaca, the black beans for tortas are always fried in asiento, never in vegetable oil. The flavor of asiento-fried beans is half the reason this torta tastes the way it does. If you cannot find asiento, use good pork lard as a second choice.
  5. 5

    Grill the tasajo

    Get the comal or grill screaming hot over high heat. Lay the tasajo sheets flat on the surface. They are thin, often no thicker than a few millimeters, so they cook fast. One to two minutes per side. Watch for the edges to darken and curl and the salt to bloom white on the surface. The meat should char in spots but stay pliable, not stiff. Pull each sheet off as it finishes and stack them on a cutting board. Cut or tear the grilled tasajo into pieces that will fit inside the bolillo. Do not cut them too small. The meat should hang out of the bread a little. That is the Oaxacan way.

    If your tasajo is very salty, run it under cold water for ten seconds per side and pat dry before grilling. Do not soak it. You want the salt, just not so much that it overpowers the asiento and the beans. A quick rinse takes the edge off without washing out the flavor.
  6. 6

    Toast and spread the bolillos

    Split each bolillo lengthwise. Place them cut side down on the hot comal for about one minute, until the surface turns golden and slightly crisp. Pull them off and immediately spread about two teaspoons of asiento on each cut side while the bread is hot. The heat melts the asiento into the crumb. You will see the dark fat soak in and the bread turn a shade darker. This is correct. The asiento is not a garnish. It is the foundation. Spread the refried black beans generously on the bottom half of each bolillo.

  7. 7

    Build the torta

    On top of the bean layer, pile the hot grilled tasajo. Drape the hand-pulled quesillo strips over the meat immediately so the residual heat softens the cheese without fully melting it. You want it to stretch when you bite, not pool into a puddle. Layer the avocado slices and tomato rounds next. Spoon a generous line of the salsa de pasilla oaxaqueño over the tomato. Add a few thin rings of raw white onion if you like them. Close the torta and press down gently with your palm. The bread should compress just enough to hold everything together. Wrap the bottom half in paper if you are eating it standing up, the way it is eaten at the mercado. Asi se hace y punto.

Chef Tips

  • Tasajo is sold at Oaxacan markets and some Mexican carnicerías outside of Mexico that carry regional specialty meats. It is not the same as carne seca or beef jerky. Tasajo is salt-cured and partially dried but remains pliable, more like a very thin, salty steak than a dried snack. If you cannot find it, ask your butcher to slice beef top round as thin as possible, salt it generously on both sides, and let it sit uncovered in the refrigerator overnight. It is a compromise, not the real thing, but it gets you close.
  • Asiento is the secret of this torta and the hardest ingredient to source outside Oaxaca. Look for it at Mexican markets that make their own chicharrón on site. The dark residue at the bottom of their frying cazo is asiento. If you render your own lard at home from pork back fat, the browned solids that settle to the bottom of the pot are a reasonable approximation. Strain and save them. Do not substitute butter or vegetable oil. The flavor will be completely different and you will have made a different sandwich.
  • Quesillo must be at room temperature when you build the torta. Cold quesillo straight from the refrigerator will not soften over the hot meat. Pull it into strips with your hands, not a knife. The strands should be long and uneven. That texture, elastic, stringy, slightly squeaky, is the point. Mozzarella fresca is the closest substitute, but it melts too fast and does not have the same pull.
  • In Oaxaca, some market tortas include a handful of chapulines (toasted grasshoppers with chile, lime, and salt) scattered over the quesillo. If you can find them, add a small handful. They are traditional and the crunch against the soft cheese and rich meat is worth the experiment.

Advance Preparation

  • The black beans can be cooked from dried up to three days ahead and refrigerated in their broth. Fry them in asiento on the day you make the tortas. Good frijoles de olla are the backbone of this sandwich.
  • The salsa de pasilla oaxaqueño keeps refrigerated for up to five days. Make it ahead and use it on everything: eggs, enfrijoladas, quesadillas, grilled meats.
  • Tasajo keeps well in the refrigerator for up to a week due to its salt content. Grill it only at the moment of assembly. Reheated tasajo toughens.

Frequently Asked Questions

Nutrition Information

1 serving (about 450g)

Calories
945 calories
Total Fat
43 g
Saturated Fat
18 g
Trans Fat
0 g
Unsaturated Fat
24 g
Cholesterol
150 mg
Sodium
1800 mg
Total Carbohydrates
76 g
Dietary Fiber
13 g
Sugars
5 g
Protein
63 g

Note: Chef personas and recipes are created with AI assistance. Cook with care: follow safe food-handling practices, check doneness with a thermometer when needed, and adapt for allergies and your kitchen.

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