This recipe is perfect for summer barbecues or any time you're craving some delicious barbecue chicken. Simply add chicken breasts, barbecue sauce, and some chopped onions and garlic to your slow cooker. Let it cook on low for 6-8 hours. Shred the chicken and serve it on buns with additional barbecue sauce and coleslaw. It's a quick and easy meal that's perfect for feeding a crowd.