
Whisk sour cream with powdered sugar and vanilla sugar. It is preferable to take powder, and not sugar, since it will have time to dissolve in the cream faster than sugar. You can beat with both a mixer and a hand whisk. Put 2 tbsp. l. sour cream, several pieces of black cream, top with the remaining sour cream. Refrigerate the dessert for 1 hour. Decorate as desired - with chocolate, berries, nuts. Serve to the table. Enjoy your meal!