If you use salt pork or you may call it fatback. You need to cook it separate in a pot of water, other wise the cabbage will be to salty. If you use regular bacon you can add it to the cabbage.

Cut the green cabbage in 4 quarters and cut the core out.

Cut the quarters in half again. Mince the onion and add the cabbage and onion to the water. Add the chicken base (if you don't have that use a bouillon cube), celery seeds, and pepper flakes. After you cook the salt pork for about an half hour your cabbage should be tender by now. Take the salt pork out of the water and cut it up, add to the cabbage.