For 4 people
Preheat the oven to 160°C
Melt the butter and chocolate in a small saucepan over low heat or put in the microwave
Beat the eggs and sugar in a bowl
Add the chocolate and butter to the bowl and continue whipping
Then add the flour and mix well until you get a perfectly smooth dough
Butter the cake mold
Pour everything into the mold
Oven for 30 minutes
Unmold once cold
Serve with a drink of your choice