Mushroom and Bacon Pierogi with Sautéed Filling

Method

1. In a bowl, mix flour, egg, milk, and salt to form a dough. Knead until smooth, then let rest for 30 minutes.
2. Sauté mushrooms, bacon, and onion until cooked. Season with salt and pepper.
3. Roll out the dough and cut into circles. Fill each with the mushroom-bacon mixture.
4. Boil the pierogi for 3-4 minutes until they float, then drain.
5. In a pan, melt butter and fry the pierogi until golden brown.
6. Serve hot with sour cream or fried onions.