1 1/2 lbs. cubed beef
1 1/2 lbs. cubed pork
14 oz. ketchup
2 tbsp. mustard
2 tbsp. sugar
1 tsp. salt
1/2 tsp. black pepper
1 medium onion, chopped
1 tbsp. barbecue sauce
Juice of 1/2 lemon

Simmer 1 1/2 hours or until meats are tender. May need to add water if it gets dry. Serve on warm buns.