Lithuanian Stuffed Potato Dumplings with Mushrooms

Method

1. Peel and boil potatoes until tender
2. Mash potatoes with milk, egg, salt, and pepper
3. In a pan, sauté mushrooms, onion, and garlic until soft
4. Mix mushroom mixture with breadcrumbs
5. Form potato dough into oval shapes
6. Fill with mushroom mixture, seal edges
7. Boil in salted water until floating
8. Serve with sour cream