1 white cake mix (plain)
1 pkg. instant chocolate pudding
3 egg whites
2 c. water

Mix and bake according to directions on package. Bake in 9 x 13 inch pan.

FROSTING:

1/4 c. butter
3 egg yolks
1 c. powdered sugar
1 tsp. vanilla

Mix frosting ingredients together and beat well. Mix in 1 (8 ounce) Cool Whip. Put on cooled cake. Chop and sprinkle 3 frozen Heath bars on top. Keep refrigerated.