SOAK the white bread for a couple of minutes in cold water.
MIX: onion, garlic, black pepper, parsley, sweet paprika powder, potato starch, ground meat. Squeeze the soaked bread and add it to the mixture.
FORM small meatballs about the size of a walnut, and set them aside.
COMBINE: Place the sauerkraut in a pot with shredded apple, tomato paste, bay leaves, caraway seed, juniper berries, and sugar/maple syrup. ADD water to almost cover the sauerkraut. Bring to a boil. Turn the heat down and add the meatballs.
SIMMER: Cover the pot and simmer everything for about 15 minutes or until the meatballs are cooked through; carefully stir from time to time so not to break the meatballs.Add a little more water if too dry. Or, if there is too much liquid, boil with the lid off to evaporate some of the liquid.
Add mustard into the pot and stir just before turning off the stove.