Gather the ingredients.
Before baking ham, place pineapple slices on ham with toothpicks and place cherries in center of pineapple.
Combine brown sugar and reserved pineapple juice in a medium microwave-safe bowl. Mix and microwave for about 5 minutes, until mixture is thick.
Pour some of this glaze over the ham about every 15 minutes in the last hour of baking, until all is used.
