KROPPKAKOR (SWEDISH POTATO DUMPLINGS STUFFED WITH BACON AND ONION)

Recipe from Saveur

http://www.saveur.com/article/recipes/kroppkakor-swedish-potato-dumplings-stuffed-with-bacon-and-onion

Ingredients

3 lb. russet potatoes, peeled and cut into 1" pieces
2 1⁄2 cups flour, plus more for dusting
2 eggs, plus 1 yolk
Kosher salt, to taste
1 tbsp. olive oil
1 lb. sliced bacon, roughly chopped
1 large yellow onion, minced
1 tbsp. ground allspice
Lingonberry preserves and sour cream, for serving