Sauerkraut Pierogi FillingPolandPublished method, 5 steps.Ingredients1 large can (~28 oz) sauerkraut1 medium onion, diced1 stick (8 tbsp) butterSaltBlack pepperSilar · CC BY-SA 3.0Open this record in the atlasMore from PolandBigos nach JägerartCheese Pierogi FillingDereniówka (Polish Dogwood Liqueur)Galaretka z drobiuGolabkisKluskiAll Poland in the atlas