Clean, wash and quarter the cabbage. Cut out the stalk and cut the cabbage into fine strips. Place in a bowl and mash vigorously. Peel onions and cut into rings.
Bring vinegar, sugar and onions to the boil and pour over the cabbage. Season with salt and pepper. Remove the sausage from the skin. Cut both sausages into slices. Finely dice the bacon and leave it crispy in hot oil.
Add the kielbasa and fry briefly. Mix both types of sausage and bacon into the cabbage, cover and leave to stand for about 30 minutes. Season coleslaw with salt, pepper and caraway seeds. Wash, chop and sprinkle parsley over it.
Pretzels are delicious with it.