Sift the flour and combine with yeast.

Add the sugar and vanilla sugar to the flour, a pinch of salt. Mix well.

Add the egg yolk.

Add the melted butter. Mix well.

Pour in the milk and stir until smooth. Add brandy as desired.

Add the whipped egg whites. Mix well. The consistency as sour cream.

I have a waffle iron, for the preparation of thin wafers. Ideally you need a waffle iron for thick waffles. So, pour in the center of the waffle iron a couple of tablespoons of the dough and close waffle iron and bake until done. I fold the waffles in half and then in half again. The waffles cool slightly and sprinkle with powdered sugar and chocolate chips.