1 c. Oreo cookies (20 oz.)
1 stick butter
1 lg. chocolate instant pudding
3 c. milk
1 sm. Cool Whip

Grind cookies - set aside 1 cup crumbs (food processor or rolling pin). Melt butter - mix with remaining crumbs. Press in cold 9 x 13 inch pan. Mix pudding and milk. Layer pudding on top of crumbs. Put Cool Whip on top of pudding. Sprinkle 1 cup crumbs on top. Chill 1 hour or longer.