Mix and bake in 9x13 ... spreading consistency. Spread on cooled cake. Allow to dry. Melt together, cool slightly and pour over frosting layer, smooth.
Mix flour, salt and baking ... Cool. Meanwhile make frosting of creme de menthe, butter and sugar. Spread ... shortening until smooth. Frost. Chill before cutting.
Prepare cake mix according to ... cakes are cooled frost top and sides of one ... and sides. Stir creme de menthe into Cool Whip. Frost top ... with Cool Whip frosting. Sprinkle top of cake ... immediately. Serves 8-10 people.