Remove the outer leaves of the cabbage and take the core out. Cut the cabbage into thin strips place them with enough water to cover the cabbag in the pot. Add to the pot the chopped onion and apple, cloves sugar and vinegar. Bring to a boil at the highest setting and let the cabbage cook 50 minutes on medium high. When the cabbage has been cooking for 30 min add the rice, that will thicken the liquid. If you don't want to use rice you can add diluted cornstarch. Add salt to your taste.