Slow-Cooked Barbacoa Beef with Pickled Onions

By AislePrompt Editorial · Published 2026-05-24 · Updated 2026-05-24

Tender slow-cooked barbacoa beef simmered with bold spices, served with tangy pickled red onions to add a bright contrast. This Mexican-inspired beef recipe, ready in about 495 minutes, pairs beef broth, chipotle peppers in adobo sauce, garlic cloves, minced 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.

Ingredients

• 2 lbs beef chuck roast, cut into 3-inch chunks
• 1 cup beef broth
• 2 peppers with 2 tbsp sauce chipotle peppers in adobo sauce
• 4 garlic cloves, minced
• 2 tsp ground cumin
• 1 tsp dried oregano
• 1/4 tsp ground cloves
• 1/4 cup apple cider vinegar
• 1 1/2 tsp salt
• 1 tsp black pepper
• 1 medium red onion, thinly sliced
• 1/2 cup white vinegar
• 1/2 cup water
• 1 tbsp granulated sugar
• 1 tsp kosher salt

The slow cooker we’d leave this in all day → Best Slow Cookers in 2026: Top Picks + Buying Guide

Instructions

1. Step 1: In a blender, combine 2 chipotle peppers with 2 tbsp adobo sauce, 4 minced garlic cloves, 2 tsp ground cumin, 1 tsp dried oregano, 1/4 tsp ground cloves, 1 1/2 tsp salt, 1 tsp black pepper, and 1 cup beef broth; blend until smooth.
2. Step 2: Place 2 lbs beef chuck roast chunks in a slow cooker and pour the blended sauce over the meat. Cover and cook on low for 8 hours until beef is tender and shreddable.
3. Step 3: While beef cooks, prepare pickled onions by combining 1/2 cup white vinegar, 1/2 cup water, 1 tbsp granulated sugar, and 1 tsp kosher salt in a small saucepan; bring to a simmer to dissolve sugar and salt.
4. Step 4: Place 1 medium thinly sliced red onion in a heatproof bowl and pour the hot vinegar mixture over it. Let sit for at least 30 minutes to pickle and soften.
5. Step 5: When beef is done, shred using two forks and mix with the cooking juices. Serve topped with pickled red onions for a bright, tangy finish.