Yolks are broken in a porcelain bowl with sugar, gradually add the melted butter, starch, flour, cocoa, baking powder, vanilla and salt. Finally, pour the beaten egg whites to stiff. Thus prepared mixture was poured into form with a diameter of 24 cm and a height of 5 cm, previously coated with butter and sprinkled with flour. The cake is baked in a moderate oven - 180 C, about 45 minutes. Once baked and cool, cut into 2-3 parts - to get the same round bases. The glaze is prepared in the following way: in a metal container Pour 6 tbsp water, egg whites, sugar and vanilla. Place the container in a pan of boiling water and stir until thickened glaze as white hard snow. It is coated both sides of the base, placed one over the other, then put and the third part. Spread top with remaining glaze, which is formed with a fork. The cake is served after a few hours.