Place the dried mushrooms in a small bowl and cover with 1 cup of boiling water; let them soak for 20 minutes, then drain (reserving the liquid) and chop finely.

In a large Dutch oven or heavy-bottomed pot over medium heat, fry the chopped bacon until the fat renders and it becomes crispy, about 5-7 minutes.

Add the cubed pork shoulder to the bacon fat and sear on all sides until browned, approximately 8-10 minutes, then remove the meat and set aside.

In the same pot, add the sliced kielbasa and diced onion, sautéing until the onions are translucent and the sausage is browned, about 5 minutes.

Return the pork and bacon to the pot, then stir in the fresh shredded cabbage and cook for 5 minutes until it begins to wilt.

Add the rinsed sauerkraut, chopped mushrooms, chopped prunes, tomato paste, caraway seeds, marjoram, and bay leaves to the mixture.

Pour in the red wine and the reserved mushroom soaking liquid (straining out any grit), stirring well to deglaze the bottom of the pot.

Reduce the heat to low, cover the pot with a lid, and simmer gently for 2 hours, stirring occasionally to prevent sticking.

Check the stew periodically; if it becomes too dry, add a splash of water or beef broth to maintain a thick stew consistency.

Remove the lid for the final 30 minutes of cooking to allow the sauce to thicken and the flavors to concentrate further.

Season with salt and freshly cracked black pepper to taste, discarding the bay leaves before serving.

Serve hot in deep bowls accompanied by slices of thick crusty bread or boiled potatoes.