Peel the potatoes and boil, then peel and cut into slices. Babek chop onion. In a baking dish, greased with butter, arrange 1/3 of the potatoes and sprinkle with paprika. Here and there they put pieces of Babek. It ranks second row of potatoes and sprinkle with paprika. Place pieces of Babek and rank the remaining potatoes. On the dish put the pieces of the butter and pour the beaten yogurt. The dish is baked in the oven until browned.