First make a sponge cake. The chocolate and butter melt in a water bath.

RUB the yolks with sugar and add melted white chocolate.

Flour, starch and soda mix and add to batter, stir well. Separately, beat whites with a pinch of salt. Add the whites into the batter.

Pour the batter into the pan. And put in the oven for 45 minutes. Bake at temperature of 180 gr.

While baked cake, prepare the impregnation. Cherry juice and bring to a boil. Starch dissolve in a small amount of cold cherry juice and put into the boiling juice, stirring constantly, i.e. as you boil the jelly. Add in the cherries. Allow to boil and remove from heat (if the juice is very acidic, add sugar to taste).

Biscuit cut lengthwise into 2-3 pieces. Smear the first layer of jelly with a cherry.

For the cream beat sour cream with sugar. Whisk until cool foam 6-8 minutes and put the cream on first impregnated with a jelly cake. Then cover with a second Korzh. Again, pudding with cherries, etc. coat the Remaining cream from all sides and top (top I spread the cream using a pastry syringe). You can sprinkle cocoa powder or chocolate shavings.