
Place chicken breasts in the slow cooker.
Combine the BBQ sauce, brown sugar, apple cider vinegar, Worcestershire sauce, smoked paprika, garlic powder, onion powder, salt, and black pepper in a bowl.
Pour the BBQ sauce mixture over the chicken.
Cook on low heat for 6-8 hours or on high heat for 3-4 hours.
Shred chicken and return to slow cooker and stir.
Cook for an additional 15-20 minutes on low heat.
Serve on hamburger buns or sandwich rolls. Enoy!