cooking for about 1 minute to get rid of the raw flour taste. This will help thicken the gravy later.
Slowly pour in the cola, stirring and scraping up any browned bits from the bottom of the skillet. Add the chicken broth or water, Worcestershire sauce, and ketchup or tomato paste. Stir until everything is well combined and the sauce is smooth. If using thyme and a bay leaf, add them now. Let the mixture come to a gentle simmer for 2–3 minutes; it will start to thicken slightly.
Taste the sauce carefully and adjust the seasoning if needed, adding a pinch more salt or pepper to your liking. Remember the flavors will deepen as it bakes.
Pour the onion-cola mixture evenly over the pork chops in the casserole dish, making sure the onions are spread over and around the meat. Dot the top with the butter, cut into small
