Remove all but about 1/4 of bacon grease from the pan. Add the sliced onion and cabbage to the pot, & cover. Cook for about 7 minutes, stirring once or twice. Add in the chicken broth, apple cider vinegar
minced garlic, & a sprinkling of pepper. Bring to a boil, then remove from the heat. Pour the onion/broth mixture into a separate dish for a moment.