Ice Cream Pie
["1 box crushed Oreo crumbs", "1/2 gal. vanilla ice cream", "1/4 c. margarine", "1 (10 oz.) jar hot fudge topping", "1 (12 oz.) container Cool Whip"]
["Mix cookie crumbs with melted butter.", "Press into a 13 x 9-inch pan.", "Spread ice cream over top of cookies.", "Pour fudge topping in even layer over ice cream.", "Spread whipped topping over fudge.", "Garnish with 1/4 cup leftover cookie crumbs.", "Put in freezer for two hours."]
["Oreo crumbs", "vanilla ice cream", "margarine", "topping"]