Step 1

Preheat the oven to 350 degrees. Place the stick of butter in a 9x13-inch baking dish and put this in the oven while it preheats for just a few minutes until the butter is melted.

Step 2

Once the butter is melted, carefully remove the pan from the oven and sprinkle brown sugar all over the top of the melted butter. Place the pineapple slices on top of the brown sugar, reserving the pineapple juice. Place a cherry in the center of each pineapple slice.

Step 3

Prepare the cake mix as directed on the package, substituting pineapple juice for some of the water. Slowly pour the cake batter over the pineapple slices and cherries.

Step 4

Bake at 350 for 45 minutes or until a toothpick inserted in the cake comes out clean.

Step 5

For an even more moist cake, place toothpicks in the corners and center of the cake and cover it with cling wrap or aluminum foil before it has cooled completely.