Barbecue Hamburg
["2 lb. ground beef", "1 c. ketchup", "6 Tbsp. chili sauce (1/3 c.)", "1 onion, chopped fine", "1 Tbsp. sugar", "2 Tbsp. mustard", "2 Tbsp. vinegar", "dash of salt"]
["Mix together and boil.", "Cook slowly for 1/2 hour.", "Makes enough filling for 3 dozen buns."]
["ground beef", "ketchup", "chili sauce", "onion", "sugar", "mustard", "vinegar", "salt"]