Knead the dough from flour, yeast, salt and water, give him a double-up. Cheese grate, mix with egg. Blindly a filling and dough balls of equal size. Roll the ball of dough with flour on the board hand flatten into a round cake, put the cheese in the center of the ball. Gather top edges and tucks. Smooth seam roll the ball. Gently crush it into a pancake on the board. In a hot frying pan without oil lay flat. Fry for 1.5-2 minutes on each side.