Withdraw the yolks from the whites. Beat yolks add the milk boiled with a piece of sugar. Boils add the starch away with 5 tbsp water. Stir to thicken. Egg whites are fighting in the snow with the remaining sugar. Cream to add both cognac and beaten whites. In appropriate glasses pour 1 tbsp sweet biscuits are stacked and pour the hot cream. Cooling is decorated with cream.