How to cook
For the vanilla cream you're going to need the following: milk - 4 1/5 cups (1 liter), flour - 2/5 cup (100 g), sugar - 4/5 cup (200 g), eggs - 4 egg yolks, vanilla - 1 stick. Beat the egg yolks with the sugar until white. Add the flour and beat again.
Pour in 1/2 cup milk and beat well again. Put the remaining milk to heat in a pot for about 5 minutes. Add the vanilla stick. Pour the egg mixture into the warm but not hot milk, while stirring nonstop with a whisk. Stir in an eight pattern with the whisk until thickened. Shortly after this cream comes to a boil, it should be ready.
Dip the cocoa biscuits in the milk to soften. Dunk each biscuit individually for about 3 seconds. Arrange 1 row of white biscuits and chocolate cream on top.
Cut the bananas into round slices and put chocolate biscuits and vanilla cream on top, then bananas and so on until you run out of products. Decorate as desired.
Leave the cake for 40 minutes in a refrigerator. Of course, you can prepare the cake with starch as well.