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Slow Cooker Sweet and Sour Beef Roast

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Slow Cooker Sweet and Sour Beef Roast is a flavorful twist on traditional pot roast, combining tender, slow-cooked beef with a tangy-sweet tomato-based sauce. It’s an easy, comforting meal perfect for busy weeknights or weekend family dinners.

Ingredients

  • 34 lbs beef chuck roast
  • Salt and black pepper, to taste
  • 2 tbsp olive oil (optional, for searing)
  • 1 large yellow onion, sliced
  • 34 garlic cloves, minced
  • 23 carrots, chopped (optional)
  • 1 (15 oz) can tomato sauce or crushed tomatoes
  • 1/3 cup apple cider vinegar or white vinegar
  • 1/4 cup brown sugar
  • 1 tbsp Worcestershire sauce
  • 1 tbsp Dijon mustard (optional)
  • 1 cup beef broth or water
  • 1 tbsp cornstarch + 2 tbsp water (optional, for thickening)

Instructions

  1. Pat the beef roast dry and season with salt and black pepper.
  2. Optional: Heat olive oil in a skillet over medium-high heat. Sear the roast on all sides until browned. Transfer to the slow cooker.
  3. Place sliced onions and optional carrots around the roast in the slow cooker.
  4. In a bowl, whisk together tomato sauce, vinegar, brown sugar, Worcestershire sauce, Dijon mustard, and beef broth.
  5. Pour the sauce mixture over the beef and vegetables.
  6. Cover and cook on low for 8–9 hours or high for 4–5 hours, until beef is fork-tender.
  7. Remove the roast and shred it using two forks.
  8. Optional: Mix cornstarch with water and stir into the sauce. Cook on high for 10–15 minutes to thicken.
  9. Return shredded beef to the slow cooker and stir to coat in the sauce. Serve hot with your favorite sides.

Notes

  • Use brisket or bottom round as an alternative beef cut.
  • Add pineapple chunks in the last hour for a fruity twist.
  • Add bell peppers or mushrooms during the last hour of cooking for extra flavor.
  • Replace brown sugar with honey or maple syrup if desired.
  • Reheat with a splash of broth or water to loosen the sauce if it thickens in the fridge.

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