1 box white cake mix
6 tbsp. Creme De Menthe, divided
1 jar Hershey's hot fudge topping
1 container Cool Whip

Prepare cake mix as directed and add three tablespoons creme de menthe. Bake as directed in 9 x 13 inch pan. While cake is warm (not hot) cover with fudge topping. Mix Cool Whip and remaining three tablespoons of creme de menthe and spread over the fudge topping. Keep refrigerated.