1. Mix 2 cups of a flour, egg, salt, 0.5 cup of sugar, baking powder, soft butter and sour cream in a large bowl; knead the dough; roll it into a ball; wrap in cling film and refrigerate for 20 minutes. 2. For filling: mix farmer cheese, yolk, 1 tablespoon of flour and 1 tablespoon of sugar in separate bowl. 3. Line a baking sheet with parchment paper. 4. Roll out the dough into a layer about 0.3 cm thick; cut circles with a diameter about 10 cm. Put 1 tablespoon of filling in each circle, pinch the edge and put on a baking sheet. 5. Bake sochniki for 20-25 minutes at a temperature of 390F (199C).

   1. Mix 2 cups of a flour, egg, salt, 0.5 cup of sugar, baking powder, soft butter and sour cream in a large bowl; knead the dough; roll it into a ball; wrap in cling film and refrigerate for 20 minutes. 2. For filling: mix farmer cheese, yolk, 1 tablespoon of flour and 1 tablespoon of sugar in separate bowl. 3. Line a baking sheet with parchment paper. 4. Roll out the dough into a layer about 0.3 cm thick; cut circles with a diameter about 10 cm. Put 1 tablespoon of filling in each circle, pinch the edge and put on a baking sheet. 5. Bake sochniki for 20-25 minutes at a temperature of 390F (199C).