Wrap ribs in large pieces of heavy-duty foil; seal edges of foil. Grill, covered, over indirect medium heat for 1-2 hours or until tender.
In a large saucepan, combine sauce ingredients; bring to a boil. Reduce heat; simmer, uncovered, for about 45 minutes or until thickened, stirring occasionally.
Carefully remove ribs from foil. Place over direct heat; baste with some of the sauce. Grill, covered, over medium heat for -30 minutes or until browned, turning once and basting occasionally with additional sauce. Serve with remaining sauce.