Polish Boiled Pierogi with Caramelized Onions

Method

1. Preheat a large pot of salted water to a boil.
2. Make dough with flour, water, and salt, let rest 30 minutes.
3. Sauté onions in butter and olive oil until caramelized, mix with cheese, nutmeg, and pepper.
4. Roll dough into circles, fill with onion-cheese mixture, seal, and drop into boiling water.
5. Boil 3-4 minutes until pierogi float, then drain.
6. Serve with sour cream and chopped chives.