Mix the quark, margarine and egg. Gradually add all the other ingredients. As soon as the dough becomes kneadable, knead many small walnut-sized balls out of it. Place the dough balls on a flat surface and place in the freezer for about 1.5 hours.
Take out the frozen balls and knead each one as follows: Press on the underside of your hand so that the ball is pressed into a flat circle. Sprinkle with sugar and fold in half so that it is now a semicircle. Sprinkle again with sugar and fold in the middle again. Sprinkle the quarter circle again with sugar and make two incisions on the rounded side. Place all paws on a prepared baking sheet.
Bake in a preheated oven at 200 ° C for about 30 minutes. As soon as the cookies are golden, take them out.