40 Oreo cookies (439 g package)
1/2 cup melted butter
3 packages cream cheese
1.5 cups icing sugar
1 tub Cool Whip
Crush 25 cookies and mix it with the melted butter. Press into an 8x11 pan. Crush the remaining 15 cookies. Beat the cream cheese and icing sugar, add the crushed cookies, and fold in the Cool Whip. Spread on top of the crust, and refrigerate overnight.