from Molly Beverly

Quarter, core and shred cabbage. pack tightly and firmly into sterile jars. Leave
1 inch headspace. Add 2 teaspoons salt and 3 teaspoons vinegar. Cover with
boiling water to 1/2″ of rim. Work out air bubbles. Cap tightly. Shake and place
in a cool dark place on a pad of newspapers. Jars will leak and bubble.