Today I did. achievement. There is no more.
ingredients:

Onions 2 heads
2 Eggs
Sour cream 100 g
100 g of wheat flour
1 teaspoon salt
vegetable oil

Preparation:

1. Cut onion rings, 6 mm thick.
2. Pour boiling water rings in a colander (а я мариновала в уксусе. норм вообще).
3. For the batter: Beat eggs, add salt and sour cream, stir in flour. Consistency as pancakes.
4. Dip rings in batter.
5. Heat the oil in a frying pan, gently fry the rings on both sides until golden brown.

Can be served with tomato or white garlic sauce.