Cake with chocolate bananas

Biscuit:
6 eggs
6 tablespoons sugar
9 tablespoons walnuts
5 tablespoons flour
half package baking powder
20 "chocolate bananas"

Filling:
2 cups (4,5 dl) milk
5 tablespoons cornstarch
8 tablespoons sugar
1 vanilla pudding
2 package vanilla sugar
9 oz (250 g) butter

Decoration:
Chocolate glaze

Cake baked in a larger pan and cut into two sheets. For the filling: cook in milk cornstarch, pudding and sugar with vanilla sugar, cool and add blended butter. On one sheet of biscuit spread on filling, put chocolate bananas on, then spread the remaining cream and cover with other sheet biscuit. Decorate top of cake with chocolate glaze.