All American BBQ Sandwiches

(this is a huge recipe...I cut it in half usually and it makes two meals with lots still left)

4 1/2 lbs ground beef
1 1/2 cups chopped onion 
2 1/4 ketchup
3 tblsp prepared mustard
3 tblsp Worcestershire sauce
2 tblsp vinegar
2 tblsp sugar
1 tblsp salt
1 tblsp pepper
buns

In a large pot, cook beef and onion until meat is browned and onion is tender; drain. 
Stir in the rest of the ingredients. Heat through. 
Serve on buns. 
(This is alot better than the BBQ beef premade stuff from stores)
Phillip and Michelle Moore