1: Set up your grill for caveman grilling and when ready to cook, rake the coals into an even layer using a grill hoe or garden hoe. Fan with a folded newspaper to disperse any loose ash.ShareTweetPin3 Shares 2: Lay the cabbage quarters on the coals. Grill until charred black on all sides and very tender inside, turning often with tongs. This could take as little as 15 minutes or as long as 30, depending on the size and density of the cabbage. Use a slender metal skewer to test for doneness. It should pierce the cabbage easily.ShareTweetPin3 Shares 3: Transfer the cabbage to a sheet pan and let it rest until cool enough to handle. Trim off the burnt outside leaves. Season with salt and pepper. Serve with the Sweet and Sour Fire Sauce.ShareTweetPin3 Shares