Dissolve the yeast in lukewarm water. Mix all dry ingredients. Mix very slowly with the quark and yeast water for 10 minutes with a dough hook and cover in a warm place for 45 minutes. The dough is very slightly sticky.
Sprinkle some flour on a work surface and knead the dough well again by hand, put in a greased bread pan and let rest for another 30 minutes. Cut 3 times with the knife.
Put a bowl of water in the oven and bake in the preheated stove at O / U 250 ° on the second rack from the bottom for 15 minutes, turn down to 190 ° and bake for another 35 minutes.