CAKE:

1 white cake mix
4 tbsp. creme de menthe

FROSTING:

1 can chocolate frosting
1 tub Cool Whip or 2 pkgs. Dream Whip
4-6 tbsp. creme de menthe

Mix cake mix per package instructions. Add creme de menthe. Bake according to cake box instructions. When cooled, ice with chocolate frosting. Top frosting with mixture of whipped topping and 4 to 6 tablespoons creme de menthe.