Mix cottage cheese with egg yolks, sour cream, starch and vanilla sugar, whisk until smooth air mass. Cool proteins and beat with sugar until stable peaks.
In the curd mass, start adding a few tablespoons of whipped protein and slowly begin to knead with a spatula, do not whisk in any case with a mixer. So mix all the protein.
Put the curd pudding in a greased baking dish, put in a warm oven for 50 minutes at 180 degrees, do not tear open the doors during cooking and do not immediately remove it from the oven so that it does not donkey.
For cream, beat sour cream with chopped banana and sugar to taste. Curd pudding is ready, pour cream, sprinkle with grated chocolate and serve.