Cooking pork chops in the oven is done by marinating, breading, baking or broiling them. The marinating procedure is the most common method used for oven cooking pork chops. Marinated pork chops are great when baked or broiled because of their ability to retain moisture.
First, add the ketchup, vinegar, oil and sugar in a bowl until there is a perfect mix of the marinade ingredients. Then, place the mixture in a glass dish or plastic bag. Add the pork chops, turning them to ensure they are fully coated. Allow to marinate for at least 30 minutes. Marinating longer will increase the flavor. When the pork is done marinating, discard any remaining marinade. Don't use the marinade to braise the meat as it cooks. Cook the pork using whatever method you prefer.
The type of vinegar used changes the taste of the marinade. Apple cider vinegar is an excellent option for pork because of the subtle fruit flavor it gives. Wine vinegar is a stronger flavor that is complex when paired with pork. Balsamic vinegar is a good option for a sweet and sour flavor.
Pork must be cooked thoroughly. The pork chops should be white all the way through without any sign of red in the center.