2½ lbs Yukon Gold potatoes (about 6 large)
1 egg
2 Tablespoons flour
2 Tablespoons sour cream
1 small onion or half of a large onion
¾ tsp salt
⅛ tsp freshly ground black pepper
½ lb ground pork, or any other ground meat that you like
1 very small onion
¼ tsp salt
⅛ tsp ground black pepper
2 Tablespoons water