Ingredients

• 4-6 boneless skinless chicken breasts
• 2 tablespoons butter or olive oil
• ¼ cup ketchup
• ½ cup apple cider vinegar
• ½ cup granulated sugar
• 1 medium onion, diced
• 1 tablespoon soy sauce
• ½ teaspoon dry mustard
• 1 cup low-sodium beef broth

Directions

1. In a large skillet, heat the butter/olive oil. Season the chicken breasts with salt and pepper and cook them for 1-2 minutes on each side, until nicely browned but not cooked all the way through.
2. Remove the chicken to the slow cooker. In a large bowl, combine all the other ingredients. Whisk well. Pour the sauce over the chicken.
3. Cover the crockpot and cook on low for 6 hours. Serve with rice or noodles.