Sprinkle pork chops with pepper.In a large nonstick skillet coated with cooking spray, cook pork over medium heat for 4-6 minutes on each side or until lightly browned. Remove and keep warm.
Add the water, vinegar, brown sugar, soy sauce and Worcestershire sauce to skillet; stir to loosen browned bits. Bring to a boil. Combine cornstarch and cold water until smooth; stir into skillet. Bring to a boil; cook and stir for 2 minutes or until thickened.
Return chops to the pan. Reduce heat; cover and simmer for 4-5 minutes or until meat is tender.