2 tbsp. butter
1 sm. jar marshmallow cream
2 1/3 c. Rice Krispies

Melt butter; beat marshmallow cream with electric beater into melted butter. Add Rice Krispies and stir. Press into pie pan and freeze 1 hour. Fill with 1 quart of your favorite ice cream. Freeze 2 hours before serving. Top with your favorite ice cream topping and Cool Whip.