6 boneless pork loin chops (4 ounces each and 1/2-inch thick)
1 medium onion, chopped
1 cup ketchup
1/2 cup water
1/2 cup chopped celery
2 tablespoons lemon juice
1 tablespoon brown sugar
1 tablespoon Worcestershire sauce
1/2 teaspoon salt
1/2 teaspoon ground mustard
1 teaspoon cornstarch
1 tablespoon cold water
Place pork chops in an ungreased 11x7-in. microwave-safe dish.
In a large bowl, combine the next nine ingredients. Pour over the chops. Cover with plastic wrap; peel back one corner to vent. Microwave on high for 11-13 minutes or until juices run clear. Remove chops; set aside and keep warm.
In a small bowl, combine cornstarch and cold water until smooth. Stir into barbecue sauce. Microwave for 30-45 seconds or until thickened. Serve sauce over chops.