Put the flour in a bowl, add sour cream and little pieces of soft butter. Knead the dough, then chill 1 hour. Roll out the dough on flour-covered Board with a thickness of around 7 mm, cut a notch into pieces (with figures you can not vydryuchivatsya spread out anyway), put on a greased baking sheet, brush with egg yolk or beaten egg and thickly sprinkled with sugar.

Bake in a preheated oven at 200 degrees for 10-15 minutes until a Golden yellow crust. I baked half an hour. But it's my oven is. Inside obtained gentle-layered, if not overdry