Barbecued Venison Burgers

1 pound elk burger
1 onion
2 tbsp. oil

Brown meat and onion in oil.

In a separate bowl, combine:
¼ cup ketchup
1 cup chunk tomato or tomato juice
1 cup water
1 tsp. chili powder
Salt, pepper and prepared mustard to taste
2 tbsp. minute tapioca

Add meat and simmer for 2 hours.