Grandma'S Sloppy Joes - cooking recipe

Ingredients

1 1/2 lb. ground beef
1/2 c. vinegar
1/2 c. brown sugar
1/2 c. water
1/2 c. ketchup
2 Tbsp. mustard
2 Tbsp. cornstarch or flour
water (enough to make a paste)

Preparation

Brown ground beef; drain.
(Chopped onion may be added to the meat as it is browning.)
Set aside.
In a saucepan, bring to boil vinegar, brown sugar and water, then add ketchup, mustard and cornstarch or flour with enough water to make a paste.
Cook until mixture is thickened.
Combine hamburger with mixture.
Stir until well combined.
Serve on toasted hamburger buns.