RECIPE:
Dough:
Wheat flour of the highest grade-450 gr (+- 50g)
Kefir any% - 250 ml.
Margarine or butter FROZEN-250 gr.
Soda-5 gr.
Salt-to taste.

FILLING
Meat any-700 gr.
Potatoes-700 gr.
Onion-500 gr.
Water-50 ml.
Black pepper-to taste.
Salt-to taste.

Egg - 1 PC. Grease the cake.

Preheat oven to 180 degrees.Bake for 40 minutes.
Butter or margarine, RUB quickly.The dough, just as quickly collect and in the freezer.What would the grains of margarine or butter, not melted.When rolling,grains of butter or margarine should be visible.Do not let the butter or margarine melt.Otherwise, the cake will not be the same as in the video, the dough will be torn.
On video very thin dough.I like that.If you want thicker, the taste and consistency of the dough will not change.
I have a baking sheet size 37*30
You can bake in a pan.

Fillings can be added any.Everything to your taste.