Shape the hamburger into 4 hamburger patties.

Place hamburgers on a heated and greased grill or on a piece of aluminum foil.

Whisk together KRAFT Barbecue Sauce and pineapple juice.

While burgers are cooking brush pineapple KRAFT Barbecue sauce mixture on top. Repeat a few times.

Turn burgers over and cook for an additional 5 -6 minutes or until desired doneness.

Place a slice of KRAFT Singles on each burger about 1-2 minutes before burgers are done cooking.

Grill your pineapple slices slightly and place on top of burger