First line a 8x4 inch loft pan with foil with the ends of the foil extending over the sides. Cover the bottom of the pan with 8 OREO cookies. Crumble the remaining cookies & place aside.
Beat the cream cheese, sugar & vanilla in a medium bowl with a mixter until well blended. Stir in the COOL WHIP. Then spoon 1-1/2 cups of the cream cheese mixture into the medium bowl & stir in the melted chocolate.
Then spread the reamining cream cheese mixture over the cookies in the pan. Sprinkle with the crumble cookies & press gently into the cream cheese mixture with spoon. Then freeze for about 3 hours or until firm.
Then remove from the freezer 15 mins before serving. Invert onto plate. Throw away the foil. Let dessert come to room temperature to soften slightly before cutting to serve.
Special Tip: You can drizzle the plates with some of the melted chocolate for a spectacular but yet simple presentation.