Preheat oven to 425F.

Heat a large nonstick skillet over medium-high heat. Spray with cooking spray and add 2 pork chops into the pan. Cook 3 minutes on each side and remove to a 8x8 casserole dish. Repeat with remaining pork chops.

Scatter apple, onion and thyme over the pork chops. Combine stock and vinegar and drizzle over meat and vegetables. Sprinkle with salt and pepper and roast for 25 minutes or until apples are golden brown and pork chops are cooked (145 is the desired temp for pork).