Instructions

Place the ribs in a 5-qt. slow cooker. Add the water, onion, celery, 1 teaspoon garlic and peppercorns. Cover and cook on low for 6 hours or until meat is tender.
In a small saucepan, combine the barbecue sauce, plum sauce, hot pepper sauce and remaining garlic. Cook and stir over medium heat for 5 minutes or until heated through. Remove ribs. Discard cooking juices and vegetables.
Moisten a paper towel with cooking oil; using long-handled tongs, lightly coat the grill rack. Brush ribs with sauce. Grill, covered, over medium-low heat for 8-10 minutes or until browned, turning and basting occasionally with remaining sauce.