Wood-Fired Mexican Barbacoa Tacos with Pickled Onions

By , Test Kitchen Director · Reviewed by AislePrompt Editorial · ·

Slow-cooked barbacoa beef served in warm corn tortillas with tangy pickled red onions and fresh cilantro for a vibrant taco experience. This mexican-inspired tacos & burritos ready in about 500 minutes pairs beef chuck roast, dried guajillo chilies, garlic cloves for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 450 calories and feeds 6, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Prep: 20 min Cook: 480 min Serves 6 Mexican cuisine 450 cal/serving
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Ingredients

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Instructions

  1. Step 1: Toast 4 dried guajillo chilies in a dry skillet over medium heat for 1-2 minutes until fragrant, then soak in 1 cup hot water for 15 minutes until softened.
  2. Step 2: Blend the soaked chilies with 4 garlic cloves and 1/2 cup beef broth until smooth, then strain to remove skins.
  3. Step 3: Cut 2 lbs beef chuck roast into large chunks and season with 2 tsp salt, 1 tsp cumin, and 1 tsp dried oregano.
  4. Step 4: Place the beef chunks in a slow cooker, pour the chili sauce and remaining 1 1/2 cups beef broth over the meat, and add 1 medium sliced white onion. Cook on low for 8 hours until the beef is tender and shreddable.
  5. Step 5: Thinly slice 1 medium red onion and place in a bowl with 1/2 cup apple cider vinegar and 1 tsp salt. Let it pickle at room temperature for at least 30 minutes.
  6. Step 6: When the beef is ready, shred it with two forks and mix with the cooking juices for moisture.
  7. Step 7: Warm 12 corn tortillas on a hot skillet for 30 seconds each side until pliable and slightly charred.
  8. Step 8: Assemble tacos by placing a generous scoop of shredded barbacoa on each tortilla, topping with pickled onions and 1/2 cup chopped fresh cilantro. Serve with 6 lime wedges to squeeze over the tacos.

Frequently asked questions

How long does Wood-Fired Mexican Barbacoa Tacos with Pickled Onions take to make?

Total time is about 500 minutes (20 min prep + 480 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.

How do I store leftover Wood-Fired Mexican Barbacoa Tacos with Pickled Onions?

Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep beef chuck roast from drying out.

Can I substitute ingredients in Wood-Fired Mexican Barbacoa Tacos with Pickled Onions?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Wood-Fired Mexican Barbacoa Tacos with Pickled Onions for a different number of people?

The recipe is written for 6 servings. Multiply each ingredient by (your serving target / 6). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

What goes well with Wood-Fired Mexican Barbacoa Tacos with Pickled Onions?

Mexican tacos & burritos like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.

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