How to make Oven-Free cake in less than 10 minutes

Ingredients:
300 gr. ladyfingers
250 ml. milk
Cream:
2 eggs
500 ml. milk
5 tablespoons of sugar
3 tablespoons of powdered sugar
8 gr. vanilla sugar or vanilla extract
5 tablespoons of flour
100 gr. dark chocolate
200 gr. butter
60 gr. whipping cream powder
To decorate :
200 ml. whipping cream
1 tablespoon of nutella
chocolate

Video: