Preheat broiler. Line bottom portion of broiler pan with foil for easy clean up. Spray top rack lightly with cooking spray.
Season ribs with garlic salt and pepper. Broil for 5 to 6 minutes, turn and broil for an additional 5 to 6 minutes. Place browned ribs in slow cooker.
In a mixing bowl, stir together remaining ingredients. Pour sauce mixture over ribs. Move ribs around to make sure they are all coated. Cover and cook on High setting for 3 to 4 hours or Low for 8 hours.
With tongs, remove ribs from slow cooker and let cool slightly before cutting into individual rib pieces. Skim grease from sauce. Serve ribs with sauce on the side.
Recipe courtesy of Sandra Lee