1 pkg. white cake mix
1 can Hershey's fudge
4 tbsp. Creme de Menthe
1 (8 oz.) container Cool Whip

Follow directions on cake mix. Add 2 tablespoons of Creme de Menthe to batter. Bake and cool. Spread fudge on the 9 x 13 inch cake. Mix 2 tablespoons Creme de Menthe with Cool Whip and spread over fudge. Refrigerate.