1 Duncan Hines white cake mix

Mix the above as per directions. Add 3 tablespoons green creme de menthe and bake. When cake is still warm, spread with one medium size jar of Smucker's chocolate fudge topping. Let cake cool completely. Mix 3 teaspoons creme de menthe with one 10 ounce box of Cool Whip and frost over fudge topping. Refrigerate.