Barbecue Beef

Ingredients
- 2 lb lean hamburger
- 1 c tomato sauce
- 1 Tbsp dry mustard
- 3 Tbsp brown sugar
- 1 large onion chopped
- 2 Tbsp vinegar
- 12 c catsup
- 1 Tbsp Worcestershire sauce
- 3 Tbsp flour
Directions
- Cook hamburger and onion until done
- Drain well
- Add rest of ingredients
- Simmer about 1 hour