1 yellow cake mix (with pudding)
1 sm. box instant chocolate pudding
2 c. lukewarm water
2 egg whites, save yolks for frosting

FROSTING:

8 oz. Cool Whip
1/4 c. softened butter
2 egg yolks
4 Heath bars, crushed

Cake: Thoroughly combine cake ingredients. Bake in a greased 9 x 13 inch pan at the temperature and length of time suggested on the cake mix box.

Frosting: Be sure cake is completely cool. Combine softened butter and egg yolks. Gradually add Cool Whip. Apply to cake. Sprinkle crushed Heath bars on top.