How to make
Beat the eggs and sugar with a mixer.
Melt the chocolate and butter in a water bath and leave them aside to cool.
Pour the walnuts and flour in a deep bowl. Pour the beaten eggs and vanilla essence over them.
Add the chocolate/butter mixture slowly and in portions to the egg one. Stir well and pour it into a tray laid out with baking paper.
Bake in a preheated 340°F (170 °C) oven for 25-30 min.
It needs to remain wet and moist on the inside. Cut it into square pieces once it cools.