Barbecue Beef - cooking recipe

Ingredients

1/4 stick margarine
1/4 c. chopped onions
1/4 c. chopped celery
2 lb. chopped or shredded cooked beef
1/3 c. vinegar
1/3 c. brown sugar
1/2 c. catsup
1 Tbsp. prepared mustard
2 Tbsp. flour
1/2 c. water

Preparation

Brown onions and celery in margarine.
Add cooked beef.
Add remaining ingredients.
Simmer for 20 minutes.
Serve on hamburger buns.