Preparation:
1. Pour milk and heavy cream into mixing bowl; add pudding and slowly beat with egg beater for 2 minutes.
2. Mix in 1/4 cup chopped peanuts.
3. Place bottom half of cake layer on serving dish; top with banana-nut filling.
4. Let set 5 minutes; top with remaining half layer.
5. Melt together margarine and unsweetened chocolate; stir in confectioners' sugar and boiling water.
6. Beat well until blended; pour over cake.
7. Garnish top with chopped peanuts; chill at least 1 hour before servin | 