For the base: yolks and whites separated. Whip with 4 tbsp water, add a little sugar. Separately, beat egg yolks with the flour, cocoa, baking powder and starch. Pour the mixture into a greased pan and bake about 30 minutes in the preheated oven to 180C. For the filling: cherries are drained and juice remains (about 700 ml). Starch was stirred with 100 ml juice. Other juice is boiled with 30 g sugar and thickened with starch. Add cherries, stir and leave to cool. The feta cheese, vanilla and 60 g of sugar, mix thoroughly. Mix with cream prior shattered. The base is divided into three. Arranged on the first half of the cherries and 1/3 of the cream. Cover with a second base, on which also rank cherries and cream. Cover with a third base, which is coated with the remainder of the cream. Cake stand four hours in the cold. Serve decorated with grated chocolate.