24 Oreo cookies, crushed
1/4 c. butter, melted

Mix together and press in bottom of spring form pan and freeze. Save about 1 teaspoon to sprinkle on top.

Mix together:

7 oz. jar marshmallow creme
1/4 c. green creme de menthe
2 c. heavy cream, whipped

Stir creme de menthe and marshmallow together. Blend in heavy cream. Mix well. Pour in pan with crust. Sprinkle 1 teaspoon crumbs on top and freeze. Remove from freeze 10 to 15 minutes before serving.