Take 1 large package Oreo cookies, crushed. Mix with 1 stick margarine. Put 2/3 in bottom of 9x13 pan. Mix at slow speed: 1/2 gallon vanilla ice cream and 1 1/2 cups peanut butter. Add: 9 oz. Cool Whip. Spread over crumbs and top with remaining crumbs.
By Robin from Washington, IA