Fry the diced smoked meat/bacon in a pan until crispy. Drain the fat, but save it for frying later.
Add the chopped onion to the meat and fry until translucent. Season with black pepper. Set aside to cool.
Kroppkakor are hearty and labour-intensive to prepare, but the result is worth it. The key to success is thoroughly squeezing out the excess water from the raw potatoes and choosing the correct ratio of raw to boiled potatoes (traditionally 1:1).
These dumplings should be boiled slowly and should not be stirred vigorously. Properly cooked dumplings will float to the surface and should be soft without falling apart.
Fry the diced smoked meat/bacon in a pan until crispy. Drain the fat, but save it for frying later.
Add the chopped onion to the meat and fry until translucent. Season with black pepper. Set aside to cool.
Mash or press the boiled potatoes through a potato ricer. Let them cool.
Grate the raw potatoes finely and thoroughly squeeze out the excess liquid (e.g., through a cloth). This is crucial!
Mix the mashed boiled potatoes, grated raw potatoes, flour, egg, and salt. Knead into a compact, non-sticky dough. If too soft, add more flour.
Divide the dough into 8-10 equal portions.
Flatten each portion into a disc. Place a tablespoon of the cooled filling in the centre.
Carefully seal the dough around the filling and shape it into a round dumpling. Ensure the dough is of even thickness and the filling is fully enclosed.
Bring salted water to a boil in a large pot.
Carefully place the Kroppkakor dumplings into the boiling water. Once they float to the surface, boil them for another 20-25 minutes at a gentle simmer.
Remove the cooked dumplings with a slotted spoon.
Serve Kroppkakor hot, drizzled with melted butter and a spoonful of lingonberry jam (Lingonsylt) on the side. Some also serve them with sour cream (Crème fraîche).