Barbequed Spare Ribs

4 lbs. spare ribs

Sauce:
1 onion, diced
1 c. ketchup
2 Tbsp. water
2 Tbsp. water
2 tsp. salt
1 tsp. paprika
2 Tbsp. worchester sauce
4 Tbsp. vinegar
4 Tbsp. brown sugar
2 tsp. dry mustard

Preheat oven to 350

1-Prepare sauce, and pour over spare ribs.
2- Bake at 350 covered for 1 hour 45 min,
3- Bake uncovered for about 15 min.