Bring 1 litre of salt water to the boil. Season with laurel and peppercorns. Cook smoked bacon and peas in it for 40 minutes. In the meantime, peel and wash the potatoes and carrots and cut them into bite-sized pieces.
Cut the sausages into slices. Remove bacon from the soup. Add carrots and potatoes and cook for another 20 minutes. Cut bacon into cubes. Warm the sausages and bacon in the soup for the last 5 minutes.
Season soup again with salt, pepper and vinegar. Wash the parsley and chop it except for a few leaves. Sprinkle the soup on top and serve garnished with the leaves.