No-bake cookie cake: the recipe for an easy and delicious cake.

In a small saucepan, combine the egg, salt, sugar, vanilla sugar, flour and cornstarch. Stir until all ingredients are well combined.
Add the milk a little at a time.
Bring to the heat and heat, stirring continuously, until thickened.
Add the butter, cut into pieces, and melt.
Place the biscuits in a baking dish in a compact layer and cover with the cream. Make other layers in the same way.
Melt the finely chopped chocolate in the hot cream.
Add the peanuts.
Use this mixture to coat the cake.
Let firm up in the refrigerator before serving.