Pineapple Cake - cooking recipe

Ingredients

1 box Duncan Hines butter cake mix
1 pt. sour cream
1 large can crushed pineapple, drained
1 medium carton Cool Whip
2 c. sugar

Preparation

Bake cake as directed on box.
Let cool, then slice into 4 layers.
Mix sour cream, pineapple and sugar.
Put this between layers.
Save 1 cup and mix with Cool Whip for icing.