1 white cake mix
1 (6 oz.) pkg. chocolate pudding
2 eggs
2 c. water

Duncan Hines - no pudding in the mix.

Mix cake mix with other ingredients and bake according to cake mix directions.

FROSTING:

1/4 c. butter
2 egg yolks
1 c. powdered sugar
1 (8 oz.) Cool Whip
2 or 3 Heath bars, crushed

Cream butter with egg yolks and powdered sugar. Fold in Cool Whip and top with Heath bars.