This just became my new favorite last night. It has a lot of steps, but it's an absolutely scrumptious treat for company. It's the creation of Bernice Janowski of Stevens Point, Wis

Crush 30 chocolate wafers into fine crumbs (should be about 1 and 1/2 cups). In a bowl combine crumbs and melted butter or margarine; toss to mix well. Spread into a 9- inch pie plate. Press onto bottom and sides to form a firm, even crust; cover and chill. For filling, in a saucepan combine granulated sugar, cornstarch and salt. Stir in milk. Cook and stir over medium heat till thickened and bubbly. Cook and stir two minutes more. Remove from heat. Gradually stir 1 cup of hot filling into yolks. Pour yolk mixture into hot filling in pan. Bring just to boiling. Reduce heat; cook and stir 2 minutes more; remove from heat. Stir in chopped white chocolate and 1 teaspoon of the vanilla. Stir till chocolate has melted. Slice 2 bananas onto the chilled crust. Spread half of the filling over all. Layer remaining chocolate wafers on filling. Chop 2 remaining bananas and place on chocolate wafers. Cover with remaining filling. Cover and chill at least 4 hours. Before serving, combine whipped cream, powdered sugar and remaining 1/4 teaspoon vanilla in a chilled bowl. Beat with an electric mixer on medium speed till stiff peaks form. Spread whipped cream over pie.