Mix the butter, sugar and eggs until frothy. Add vanilla sugar (lemon flavor), baking powder and flour, work into a kneading dough.
Put in a cool place, turn through the meat grinder with the additional device for shortbread cookies. Line a baking sheet with parchment paper and place the cookies on it.
Baking time approx. 15 minutes at 180 ° C
After cooling, decorate with the dark and white (melted in a water bath) couverture.