Note: Drain pineapple but reserve 1/2 cup for sauce to marinate.
Marinate chicken in Heinz 57 sauce, 1/2 cup pineapple juice and honey for 2 or 3 hours. I grill chicken until done and just brush chicken with sauce during cooking. Last 10 minutes put pineapple slice on each breast and brush a little with sauce.
Note: If you bake in conventional oven - add sauce last 30 minutes and pineapple slices last 10 minutes.