Sprinkles sweet shopthe recipe used chocolate chips (a mixture of white and milk chocolate),to taste
Separate the yolks from the whites (the yolks can be used in another recipe, for example, when preparing shortbread). Add the whites to the bowl. Beat the whites to a light froth, then add citric acid (1 pinch), add 1 pinch of salt. Beat the mixture.
Then add the starch (30 gr.), add the sugar (250 gr.)
Beat the protein-sugar mixture, but not to persistent peaks. Please note that the protein dough should overflow slightly when the bowl is tilted.
I want to pay attention to the fact that it is better to bake protein dough on a silicone Mat, it will be very difficult to remove the finished cake from the parchment. Therefore, cover the baking sheet with a silicone baking Mat, put the protein dough on the silicone Mat and smooth it out. Send the baking sheet to the oven preheated to t-160*C.
Bake until light Golden brown on the surface of the cake. The approximate baking time in an electric oven is 25-30 minutes. Everyone has different ovens, so you should focus on the capabilities of your oven. Next, remove the silicone Mat along with the protein base for the roll from the baking sheet. Here I would like to say a few words, which of the surfaces is better to lubricate with cream.
You can grease the inner surface of the cake, then you will get a delicious, cracked, ruddy crust on the surface of the roll, or you can, as in my case, grease the upper, visible part. This is all optional.
After the protein cake is ready, open the oven door slightly and let the cake cool down without removing it from the oven for 10-15 minutes.
In a bowl add sour cream (350 gr.), add thickener for sour cream (1 pack.), add sugar (the amount of sugar to adjust to taste). Then add 1 teaspoon of cocoa powder.
Beat the cream until it is thick.
Grease the protein cake with the prepared cream, leave 2-3 tablespoons of cream to lubricate the surface of the roll. Roll the roll using a silicone Mat.
The finished roll should be greased with the cream that was put aside earlier and sprinkled with chocolate chips.