In the bowl where we will knead the dough, break 1 egg and 1 protein, mix a little, add sunflower oil, sour cream, salt, mix. Pour in the dough, mix and, after adding a little flour, knead the soft dough. Flour may need a little more or a little less. The dough should be kneaded well for 5-7 minutes. Sprinkle a bowl with flour, lay out the dough and leave it in a warm place without drafts so that it fits.