-menthe or: Cointreau food coloring if -desired With a spoon, smear melted chocolate evenly over inside of 12 paper cups. Turn cups upside down on a plate. Refrigerate until set. Gently peel off the paper. Mousse: Slowly melt white chocolate. Remove from heat; quickly beat in egg yolks. Set aside. In a separate bowl, beat egg whites until stiff, but not dry. Divide egg yolk min into three separate bowls and add 1 teaspoon of a different liqueur to each bowl. Add a drop or two of green food coloring to bowl containing creme de menthe if desired. A drop or two of yellow coloring can be added to Cointreau mixture. Gently fold a third of the egg whites into each of the bowls. Spoon into chocolate shells. Refrigerate 2 hours. These shells should be consumed within 24 hours. The chocolate cases can be made ahead of time and stored in a cool, dry place. Makes 12 candies.