1 beef rump or round bone roast (5 lbs.)
1 onion, chopped & sauteed
1 pt. chili sauce
1 c. catsup
1/2 tsp. Worcestershire sauce
2 c. water
2 tbsp. cornstarch
1 tbsp. chili powder
1 tsp. paprika
1/8 tsp. pepper
4 tbsp. vinegar
1/2 c. brown sugar
1/2 tsp. allspice