Pierogi with Sauerkraut and Carrots

Method

1. In a pan, sauté onions until softened, then add sauerkraut, carrots, caraway seeds, salt, and pepper. Cook until tender.
2. Roll out the pierogi dough and cut into circles.
3. Fill each circle with the sauerkraut mixture, fold, and seal.
4. Boil the pierogi in salted water until they float, then drain.
5. In a pan, melt butter, add flour and milk, and cook until thickened.
6. Serve pierogi with the sauce.