Place foil packet, beef patties and peameal bacon on barbecue grate. Grill patties and bacon 4 min. on each side. Brush evenly with half the remaining barbecue sauce. Grill 2 to 4 min. or until burgers are done, turning and brushing burgers and bacon occasionally with remaining barbecue sauce. Top burgers with Kraft Singles
and add buns, cut sides down, to barbecue. Grill 1 min. or until Singles
are melted and buns are lightly toasted.