1/2 c. ketchup
1 1/2 tsp. salt
1/2 tsp. chili powder
1 c. water
1/2 tbsp. dry mustard
1 tbsp. brown sugar
4 loin pork chops (center cut 1 1/2" thick)
1 lemon
1 yellow onion

Mix first 6 ingredients together. Put chops in flat greased baking dish in 1 layer. Pour sauce over chops. Slice lemon and onion and arrange 1 slice of each on each chop. Bake in 325 degree oven covered for 2 hours. Remove cover and baste well with the sauce. Continue baking, uncovered, for 1/2 hour more. Spoon sauce over chops again before serving. Serves 4. May be made ahead and refrigerated overnight.