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. In a mixer bowl, mix flour, soda and sugar. 2. Add butter and mix well on low speed for about 5 minutes. 3. Add the egg and mix on low speed for 5 more minutes. 4. Preheat oven to 375F (190C). 5. Line the baking tray with parchment paper. 6. Spread 3/4 of the dough evenly over the parchment and lightly press the dough with your hands. 7. Spread the jam on top of the dough. (If the jam is very thick, it can be warmed up and this way it will be easier to distribute.) 8. Sprinkle the remaining dough crumbs on top. 9. Bake 18-20 minutes. Place on a cutting board and cut into squares while still hot. Cool on a wire rack.