Reserve 1 cookie for garnish; finely chop remaining cookies. Mix chopped cookies and margarine. Beat cream cheese products, melted chocolate and condensed milk in medium bowl with mixer until well blended. Stir in 1 cup Cool Whip
; spoon into prepared bowl. Top with chopped cookie mixture. Cover dessert with plastic wrap; use to gently press cookie mixture into cream cheese mixture. Freeze 6 hours or until firm.