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Camarones al Chileajo de la Costa Oaxaqueña

Camarones al Chileajo de la Costa Oaxaqueña

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Oaxaca's Pacific coast cooks shrimp in a thick paste of toasted guajillo, a whole head of charred garlic, and a quiet hit of cumin. Served straight from the cazuela with white rice and warm tortillas.

Main Dishes
Mexican
Weeknight
Quick Meal
Dinner Party
20 min
Active Time
25 min cook45 min total
Yield4 servings

This is from the costa de Oaxaca. Specifically the costa chica, the stretch of Pacific coast between Puerto Escondido and Pinotepa Nacional where the cooking has nothing to do with the seven moles of the Valles Centrales. Most people who think they know Oaxacan food know the highlands. The coast is its own cuisine, with its own chiles, its own techniques, its own sense of itself. Esto no es comida de un solo Mexico. It is not even comida de un solo Oaxaca.

Chileajo means chile and garlic, and the name tells you the recipe. A whole head of garlic, charred on a comal until it is soft and spotted black. Guajillo for the body. Ancho for the sweetness. A costeño rojo, if you can find one, for the dry, slightly smoky note that marks the dish as coastal. Cumin and clove in small, careful amounts. Vinegar to lift it. Lard to fry it. Then shrimp, the freshest you can get, slipped in at the very end.

The shrimp are not the recipe. The chileajo is. The shrimp are the vehicle. I learned this version from a senora named Doña Reyna in a fishing village outside Puerto Escondido, who cooked it in a clay cazuela over a wood fire with shrimp her son had pulled from a boat that morning. She told me the paste should be thick enough to hold the mark of a spoon. If it runs off, it is not chileajo, it is sopa. Cada estado, su propia cocina, and on the Oaxaca coast, the cooks know exactly what theirs looks like.

Chileajo as a category of dishes, a thick paste built on dried chiles, garlic, and spices, predates the conquest in technique, descending from the pre-Columbian practice of grinding toasted chiles with garlic-adjacent alliums on the metate. The Spanish introduction of garlic, vinegar, cumin, and clove in the 16th century reshaped the formula into the version that survives along the Costa Chica today, where Afro-Mexican and indigenous Mixtec cooks codified it as a regional staple distinct from the moles of the Oaxacan highlands. Chileajo is also prepared with pork or chicken in the Mixteca region inland, but the shrimp version belongs unambiguously to the coast, where the proximity of the Pacific dictates the protein.

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

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Ingredients

large fresh shrimp

Quantity

1 1/2 pounds

peeled and deveined, tails left on

dried chile guajillo

Quantity

10

stemmed and seeded

dried chile ancho

Quantity

2

stemmed and seeded

dried chile costeño rojo (optional)

Quantity

1

stemmed and seeded

whole head of garlic

Quantity

1

cloves separated and peeled

whole cumin seeds

Quantity

1 teaspoon

dried Mexican oregano

Quantity

1 teaspoon

whole black peppercorns

Quantity

4

whole cloves

Quantity

2

kosher salt

Quantity

1 1/2 teaspoons, plus more to taste

apple cider vinegar

Quantity

2 tablespoons

manteca de cerdo (pork lard)

Quantity

3 tablespoons

shrimp stock or water

Quantity

1 cup

lime

Quantity

1

halved

cooked white rice (optional)

Quantity

for serving

hand-pressed corn tortillas (optional)

Quantity

for serving

warmed

lime wedges (optional)

Quantity

for serving

sliced raw white onion (optional)

Quantity

for serving

Equipment Needed

  • Cast iron comal or heavy skillet for toasting chiles, spices, and garlic
  • High-powered blender
  • Wide clay cazuela or heavy 10-inch skillet for cooking the shrimp
  • Wooden spoon

Instructions

  1. 1

    Toast the chiles

    Heat a dry comal or heavy skillet over medium. Toast the guajillo, ancho, and costeño chiles separately, about 20 to 30 seconds per side. Press them flat against the comal with a spatula. The skin should puff and the kitchen should smell like the chile aisle of the Mercado de Abastos in Oaxaca. That smell is the oils releasing. Skip this and the chileajo will taste flat and raw.

    Watch the costeño. It is thinner than the guajillo and turns bitter the moment you stop paying attention. Burned chile cannot be saved. Throw it out and toast another.
  2. 2

    Soak the chiles

    Transfer the toasted chiles to a heatproof bowl. Cover with hot tap water, not boiling. Boiling water cooks the skin and turns the salsa bitter. Let them soften for 15 minutes, weighing them down with a small plate so they stay submerged. Drain and reserve a half cup of the soaking liquid in case the blender needs help.

  3. 3

    Toast the spices and the garlic

    On the same comal, toast the cumin seeds, peppercorns, and cloves for about a minute, until fragrant. Tip them onto a plate. Now toast the peeled garlic cloves directly on the comal, turning them, until they are charred in spots and softened, about five minutes. The black spots are the flavor. This is what gives chileajo the deep, almost smoky garlic backbone that distinguishes it from any other coastal salsa.

    A whole head of garlic is correct. No me vengas con atajos. Chileajo means chile and garlic, in equal seriousness.
  4. 4

    Blend the chileajo paste

    In a blender, combine the drained chiles, the toasted garlic, the toasted spices, the oregano, the salt, and the apple cider vinegar. Add about a third of a cup of the soaking liquid to start. Blend on high until you have a thick, smooth paste, the color of dried clay. Add more soaking liquid only if the blender struggles. You want a paste, not a sauce. The thickness is what makes it chileajo and not a thin guisado.

  5. 5

    Fry the paste in lard

    Melt the lard in a wide cazuela or heavy skillet over medium heat. When it shimmers, add the chileajo paste. It will sputter. Step back. Cook for six to eight minutes, stirring constantly with a wooden spoon, until the paste darkens, the fat starts to separate around the edges, and the kitchen smells deeply of toasted chile and garlic. La manteca es el sabor. This step is not optional. A raw chileajo paste tastes harsh.

  6. 6

    Loosen with stock

    Pour in the shrimp stock or water and stir until the paste loosens into a thick, glossy sauce that coats the back of a spoon. Let it bubble gently for two minutes so the flavors marry. Taste for salt now. The shrimp will release a little water and dilute the seasoning, so the sauce should taste assertive at this stage.

  7. 7

    Cook the shrimp

    Pat the shrimp dry. Slide them into the simmering chileajo in a single layer. Stir gently to coat each one. Cook for two minutes, turn them once, and cook for one to two minutes more, until the shrimp turn opaque and curl into loose Cs. Do not walk away. Overcooked shrimp turn rubbery in seconds and there is no recovering from it. Squeeze the lime over the cazuela the moment you pull it from the heat.

  8. 8

    Serve at the table

    Bring the cazuela straight to the table. Set a bowl of white rice, a basket of warm tortillas, lime wedges, and a small dish of sliced raw white onion alongside. Each person spoons shrimp and sauce over the rice or pulls them into a tortilla. The thick paste is meant to cling. Asi se hace y punto.

Chef Tips

  • Buy shrimp with the heads on if you can find them, peel them yourself, and simmer the heads and shells with a little salt for ten minutes to make the stock for the sauce. The flavor is on a different level. If you cannot, water works.
  • Chile costeño rojo is what makes this taste like the coast and not the highlands. If you cannot find it, substitute another chile guajillo and add an extra clove of charred garlic. A substitution is a compromise, not an upgrade, but the dish will still be recognizable.
  • Do not skip the lard. Olive oil will not fry the paste the same way and the finished dish tastes thinner and somehow less Mexican. La manteca es el sabor.
  • The paste can be made on its own and used through the week. It keeps in the refrigerator for ten days under a thin film of lard, and you can use it on chicken, pork, or fish. Doña Reyna kept a jar on the counter at all times.

Advance Preparation

  • The chileajo paste can be made up to three days ahead and refrigerated. Reheat in lard before adding the shrimp. The flavor deepens overnight.
  • Shrimp stock can be made the same day from the shells and refrigerated for up to two days, or frozen for a month.

Frequently Asked Questions

Nutrition Information

1 serving (about 410g)

Calories
600 calories
Total Fat
16 g
Saturated Fat
4 g
Trans Fat
0 g
Unsaturated Fat
11 g
Cholesterol
265 mg
Sodium
745 mg
Total Carbohydrates
75 g
Dietary Fiber
9 g
Sugars
5 g
Protein
43 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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