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Crockpot BBQ Beef Brisket Sandwiches

Crockpot BBQ beef brisket sandwiches with smoky, tangy sauce and fall-apart shredding. Slow-cooked all day, piled onto toasted brioche with creamy quick coleslaw for a rich, saucy bite.
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Prep Time 25 minutes
Cook Time 10 hours
resting/chilling 15 minutes
Total Time 10 hours 40 minutes
Servings: 8 servings
Course: Dinner
Cuisine: American
Calories: 620
Ingredients Equipment Method Notes

Ingredients
  

Brisket
  • 3.5 lb beef brisket, flat cut About 3–4 lbs.
  • 1 tsp kosher salt
  • 1 tsp black pepper
  • 1 tsp garlic powder
  • 1 tsp onion powder
  • 1 tsp smoked paprika
  • 0.5 tsp cayenne pepper (optional)
  • 1 tbsp olive oil
BBQ Sauce Mixture
  • 1.5 cup BBQ sauce Your favorite brand or homemade.
  • 2 tbsp apple cider vinegar
  • 1 tbsp brown sugar
  • 1 tbsp Worcestershire sauce
  • 1 tsp garlic powder
  • 1 medium yellow onion, thinly sliced
Quick Coleslaw
  • 2 cup shredded green cabbage
  • 0.5 cup shredded purple cabbage
  • 1 medium carrot, shredded
  • 3 tbsp mayonnaise
  • 1 tbsp apple cider vinegar
  • 1 tsp sugar
  • 0.25 salt Salt and pepper to taste.
  • 0.25 pepper Salt and pepper to taste.
For Serving
  • 8 brioche buns Use 6–8, toasted.
  • 1 sliced pickles (optional)
  • 2 extra BBQ sauce for drizzling

Equipment

  • 1 cast iron skillet
  • 1 Dutch oven

Method
 

Season and sear the brisket
  1. Pat the brisket dry with paper towels. This helps the spices stick and the surface sear evenly.
  2. Mix together the kosher salt, black pepper, garlic powder, onion powder, smoked paprika, and cayenne. Rub the spice mixture generously all over both sides of the brisket.
  3. Heat the olive oil in a large skillet over medium-high heat. Sear the brisket for 3–4 minutes per side until a deep brown crust forms, then transfer it to the crockpot.
Slow-cook in BBQ sauce
  1. Layer the thinly sliced yellow onion on the bottom of the crockpot. Add the seared brisket on top.
  2. Whisk together BBQ sauce, apple cider vinegar, brown sugar, Worcestershire sauce, and garlic powder. Pour the sauce over the brisket so it’s coated.
  3. Cover and cook on LOW for 8–10 hours or HIGH for 5–6 hours, until the brisket is completely fork-tender and pulling apart easily. Keep the lid on during cooking for best tenderness.
Shred, rest briefly, and assemble
  1. Remove the brisket and place it on a cutting board. Shred or slice the meat so it falls apart with almost no effort.
  2. Return the shredded meat to the crockpot and stir it into the BBQ sauce. Mix until the brisket looks evenly sauced.
  3. Combine the green cabbage, purple cabbage, shredded carrot, mayonnaise, apple cider vinegar, sugar, salt, and pepper in a bowl. Toss well and refrigerate for at least 15 minutes.
  4. Toast the brioche buns lightly in a dry skillet or under the broiler until golden. Keep them warm for the saucy filling.
  5. Pile the shredded BBQ brisket onto the bottom bun, top generously with coleslaw, add sliced pickles if using, and drizzle with extra BBQ sauce. Serve immediately while the buns are toasted and the filling is hot.

Notes

Pro tip: Don’t skip the sear—browning the spices on the brisket adds a deeper smoky flavor to the final sauce. Store leftover brisket (with sauce) in the refrigerator up to 3–4 days; coleslaw keeps 2–3 days separately. Freezing: brisket freezes well up to 2 months; thaw overnight in the fridge and rewarm gently. For a lighter option, use light mayonnaise in the coleslaw without changing the method.