Set oven control to broil. Spray broiler pan with cooking spray. Pour barbecue sauce into shallow bowl. Dip ribs into sauce, coating both sides. Place ribs on broiler pan, rib side down. Broil with tops of ribs 3 inches from heat 3 to 4 minutes, just until sauce sets up on ribs. Turn ribs, and broil 3 to 5 minutes longer, just until sauce begins to caramelize. Serve with remaining barbecue sauce.