Mix kefir, eggs, salt, softened margarine, add flour and soda (at least, quenching is not necessary). Knead a soft dough, knead well on floured Board to not stick to hands. The finished dough cover with a bowl and leave to rest for 15-20 minutes.

On a greased baking sheet roll out the crust so that the edges are a bit hanging from the sheet with a thickness of not more than 1 cm (the dough rises strongly). On the dough put "scales" raw potatoes cut into thin slices (you can RUB on a large grater and gently squeeze), salt, sprinkle with spices.

On the potatoes to distribute the minced meat, salt, sprinkle with spices, and top with the onions cut into thin rings, salt, spices.

Cover with the second layer of dough, rolled thinner than the first, tightly stung, make a hole for steam output. Bake in a preheated to 200 deg. the oven 35-40 min.

Ready cake cover with a damp towel, let stand for 3-5 minutes to enjoy your meal. From the specified quantity of products you get a big pie of size about 30*40 cm