White cake mix
6 tbsp. creme de menthe
1 can chocolate frosting
1 lg. Cool Whip

Mix white cake according to box directions, except reduce water by 3 tablespoons and add 3 tablespoons creme de menthe. Bake in 9x12 pan. Frost when cool with chocolate frosting. Refrigerate to harden.

Add 3 tablespoons creme de menthe to 1 large Cool Whip and frost again. Refrigerate.