In a large saucepan, cook the bacon over medium heat until crispy. Once done, remove the bacon and leave around two tablespoons of bacon fat in the pan.
Once the vegetables are tender, stir in the caraway seeds, add the broth, followed by the cabbage and potatoes. Bring the mixture to a boil, then reduce the heat and let it simmer until the potatoes are soft, approximately 20 minutes.
Final Touches:
After cooking, turn off the heat and gently blend in the sour cream, vinegar, parsley, bacon, and the green parts of the onions. Finally, season with salt and pepper to your liking.
Serve your delicious potato and cabbage soup warm and enjoy!