Knead all ingredients with the hand mixer to a smooth dough - at least 5 minutes. Cover the dough and let rise in a warm place for about 25 minutes.
Then divide into two equal pieces. Round the dough pieces, roll them in rye flour and place on a baking tray lined with baking paper. Let rise for another 50 minutes.
Bake in the preheated stove at 240 ° on the lower rack for 10 minutes, reduce the heat to 210 ° and bake for another 40 minutes.