Traditional Russian Fried Dumplings

Method

1. Mix flour, water, egg, and salt to make a dough. Let it rest for 30 minutes.
2. Roll out the dough and cut into circles.
3. Fill each circle with mashed potatoes and onion mixture.
4. Fold and seal the dumplings.
5. Heat butter in a pan and fry the dumplings until golden brown.
6. Serve with a dollop of sour cream.