For Sponge board separate yolks from whites. Beat the egg whites with a pinch of snow salt and egg yolks - cream with sugar. Pour snow egg white in egg yolks and mix gently with a spatula. Sift over them mixed with baking powder, flour and vanilla and mix again thoroughly. Pour the mixture on the board in the tray covered with baking paper and bake in preheated oven for about 15 minutes or until the board turn pink. Do not open the oven door during baking. Similarly prepare another two boards. For the cream put the milk to boil. Mix sugar, flour and starch, pour in the boiling milk and stir vigorously. Leave a cream to cool. Pour it in the soft butter and beat with mixer until fluffy cream. Prepare sugar syrup. Cool it. Each board soaked in sugar syrup and cover with a layer of cream (the top layer on the third board should be quite thin as you stick fruits in the ranking). Cut the edges of the cake with a knife to even it up. Cut the fruit into slices, strawberries leave purposes. Arrange them on the cake and brush with glaze the fruit jelly.