1 kg room-temperature margarine
250 g room-temperature butter
1 kg sugar
3 eggs
3 tubs of sour cream
1 tub of quark
3 tsp baking soda
2 kg all-purpose flour
Mix sugar and eggs into the room-temperature, soft fat. Mix quark and sour cream, then add baking soda to them. Add to the fat-sugar-egg mixture and mix (do not whisk). Add all-purpose flour. Knead the dough preferably on a baking surface, not in a bowl. Lightly roll out, sprinkle sugar on top, and make pastries with a dough cutter or a mold. Bake at 275 degrees until beautifully browned.
