How to cook
Peel the potatoes, wash them and grate on a coarse grater. Put them in a colander and let the excess liquid drain away after crushing them a bit with your hands.
Then mix them with the sour cream, salt to taste and the egg yolks. Let the liquid from the potatoes drain out, then decant it and save the starch.
Mix it in with the potatoes and add the carefully beaten to snow egg whites. Pour spoonfuls of this blend into a greased pan and fry the potato pancakes on both sides. Bake for about 3 min. on each side, until they attain a nice, golden crisp.
Drain them on paper towels. Usually, potato latkes are served with a traditional apple sauce.