1 lb. bag oreos
1/4 lb. butter
1 (8 oz.) pkg. cream cheese
1 c. 4X sugar
8 oz. Cool Whip
1 lg. pkg. instant vanilla pudding

Crumble oreos on bottom of a 9 x 13 inch pan. Melt butter and pour over oreos. Cream cream cheese with 4X sugar and 1 cup of Cool Whip. Drop by spoonfuls over Oreos and butter and spread evenly. Mix pudding as directed on package and pour over cream cheese mixture. Top with remaining Cool Whip. Refrigerate several hours before serving.