Basic recipe from Woman's World 12/18/08, but I have added instructions for an Oreo pie crust. Preparation time includes chilling time. To allow advance preparation of the whipped cream topping, I use Recipe #485591 #485591. Made 12/18/13: whipped cream was unnecessary; vanilla layer did not impress, why not use chocolate mint as a contrast? Used 12 Star Light peppermint candies in clock face layout and crushed 6 candies to sprinkle over top. I recommend using a rich ice cream so that it will soften easily. Edy's Grand Peppermint was super in this.