CRUST:

18 filled Oreo cookies
2 tbsp. butter

Crush cookies. Add melted butter.

FILLING:

24 lg. marshmallows
1/2 c. milk
1 c. whipping cream
6 tbsp. creme-de-menthe

Melt marshmallows with milk over very low heat. Cool. Whip 1 cup whipping cream. Add creme-de-menthe. Mix. Pour into crust and freeze.