1 sm. pkg. Oreo cookies
About 1/3 c. melted butter
1/2 pkg. softened vanilla ice cream
1 can Hershey's hot fudge
Mixed nuts
8 oz. Cool Whip

Crush Oreo cookies and mix with melted butter. Save 1 cup crumbs for topping. Press into 9 x 13 pan. Put the vanilla ice cream of top of crumbs and freeze until firm. Top with hot fudge and mixed nuts. Spread the Cool Whip over. Put the remaining crumbs on top and freeze.