Hamburger Barbecue - cooking recipe

Ingredients

1 lb. ground beef
3/4 c. ketchup
1 onion
2 Tbsp. butter
2 Tbsp. mustard
1 Tbsp. vinegar
1 Tbsp. Worcestershire sauce
3 Tbsp. sugar

Preparation

Fry beef; drain.
Add remaining ingredients.
Simmer and serve on hamburger buns.