Sloppy joes

INGREDIENTS

1 lb

Ground beef, lean

1/4 cup

Onion

1 cup

Ketchup

2 tbsp

Worcestershire sauce

1/2 tsp

Black pepper, ground

1/4 cup

Brown sugar, packed

2 tsp

Chili powder

1 tsp

Salt

1 tbsp

Red wine vinegar

6

Buns

1 tbsp

Butter

1

Butter

1/2 cup

Water