Patience Cake - cooking recipe

Ingredients

1 box Duncan Hines Butter Recipe cake mix
2 (9 oz.) Cool Whip
2 small cartons sour cream or 1 large carton
1 box powdered sugar
coconut and nuts (optional)

Preparation

Bake cake as directed and split each layer in half, making 4 layers.
Mix remaining ingredients and spread on cooled cake. Refrigerate 3 days before cutting.