1 yellow cake mix, without pudding
1 lg. chocolate instant pudding
2 eggs
2 c. water

TOPPING:

1/2 c. butter, melt and cool
2 egg yolks
1 c. powdered sugar
1 (8 oz.) Cool Whip
3 lg. Heath bars

Bake cake mix, instant pudding, eggs, and water in greased 9 x 13 pan at 350 degrees for 35-40 minutes. Cool.

Mix butter, yolks, and powdered sugar. Fold in Cool Whip. Frost cake. Crush Heath bars and sprinkle on top. Refrigerate.