1 box yellow cake mix
1 tsp. butter

TOPPING:

1 can sweetened condensed milk
1 lg. container whipped topping
1 pkg. frozen fresh coconut or 1 can crushed pineapple

Mix cake according to package instructions, adding 1 teaspoon butter. Cook according to package instructions in one layer. Cool layer. Poke holes in layer and pour sweetened condensed milk over top. Ice with whipped topping. Place coconut or pineapple over whipped topping. Refrigerate 12 hours.