Barbecued Spareribs

4 pounds spareribs
3 large onions
1 cup catsup
1 cup water
2 tsp. salt
1 tsp. paprika
2 Tbsp. Worcestershire sauce
4 Tbsp. vinegar
4 Tbsp. brown sugar
2 1/4 tsp. dry mustard

Cut spareribs into pieces, then brown in a baking pan over low heat. Combine other ingredients and pour over ribs in pan. Cover and bake for 1 3/4 hours at 350 degrees. Be sure to spoon sauce over ribs every 20 minutes and remove cover last 15 minutes.