The oven to put on heating to 180 C. Prepare a muffin tin to grease. ( I have paper forms, I don't.
Melt the chocolate with butter ( in a water bath or microwave)
Mix flour with baking powder.
Sugar, salt, eggs and vanilla sugar beat until creamy.
Neatly into several stages add the flour. Stir.
Now add the melted chocolate. Spread the dough into muffin molds and bake for about 20 Minutes.