Mix the quark with the butter. Then add the remaining ingredients and knead into a smooth dough.
Roll out the dough about 3 mm thick on a floured work surface and cut out circles with a glass or serving ring. Since I like the biscuits to be small, I take a diameter of about 6.5 mm, which makes about 80 biscuits. With a larger dia, of course, correspondingly less.
Sprinkle the dough circles with sugar on top and fold them into a semicircle. The sugar is inside now. Then again sprinkle one top with sugar and fold into a triangle. The sugar is inside again. Roll the shell-shaped cookies again completely in sugar and place on a baking sheet lined with baking paper.
Bake in a preheated oven at 180 ° C for 15 minutes until golden brown.
Note from the head chef`s recipe processing (October 5th, 2020): If you use regular German quark, you take approx. 250 g quark and 300 g flour.