1 box white cake mix
creme de menthe
green food coloring
1 can Hershey's fudge topping (not the chocolate sauce; which has been warmed for easy spreading)
Cool Whip

Mix to directions on box, except cut back 2 1/2 tablespoons water and add 3 tablespoons of creme de menthe. About 3 drops green coloring can be added for color.

Bake and cool. Spread Hershey's fudge topping. Top with Cool Whip that has 3 drops of green coloring folded in and 2 tablespoons creme de menthe.

(You can also use the green creme de menthe.)