Butterfinger Cake - cooking recipe

Ingredients

yellow cake mix
2 egg whites, beaten
2 c. powdered sugar
1/2 c. margarine
16 oz. Cool Whip
6 regular Butterfinger bars

Preparation

Bake cake as directed; let cool completely.
Crush Butterfingers.
Mix together beaten egg whites, margarine and powdered sugar; fold in Cool Whip.
Crumble cake.
Layer ingredients in pan, beginning with crushed Butterfingers, cake, then mixture.