How to cook sour cake with prunes and nuts?

Smetannik with prunes and walnuts. Walnut cake with sour cream and prunes. A delicious cake with two types of cakes and delicate sour cream cream. The prunes adds sourness and a pleasant taste for this cake. Mix one glass of flour with nuts chopped in a blender and 1/2 teaspoon of soda. Mix the second glass of flour with 2 tablespoons of cocoa and the remaining soda. Beat eggs with sugar and sour cream. Divide the mass into 2 equal parts. Add flour with cocoa to one part, mix and bake on a greased form in the oven at 180 C for about 20 minutes. Mix nutty flour with the remaining mass. Bake similarly to the first cake. Pour the prunes with boiling water for 20 minutes. Beat sour cream for the cream and continuing to beat, gradually add sugar powder. Cut the prunes. Cut the cooled cakes along in half. Collect the cake, alternating chocolate and nut cakes. Mark each cake with cream and sprinkle with prunes. Pour the remaining cream into the upper cake and decorate with halves of prunes and c