1.In A Small Bowl, Combine The Orange Juice, Brown Sugar, Vinegar And Soy Sauce; Set Aside. In A Large Skillet, Brown Pork Chops On Both Sides In Oil; Sprinkle With Salt And Pepper. Cook 10 Minutes Longer Or Until A Meat Thermometer Reads 160 Degrees F. Remove And Keep Warm. 2.In The Same Skillet, Saute Onion For 2-3 Minutes. Add Orange Juice Mixture; Cook And Stir Until Heated Through. In A Small Bowl, Combine Cornstarch And Water Until Smooth; Stir Into Pan Juices. Bring To A Boil; Cook And Stir For 2 Minutes Or Until Thickened. Serve Over Chops.