Quick Sloppy Joes
["1 lb. hamburger", "1/2 onion, chopped", "1/2 c. catsup or chili sauce", "1 Tbsp. vinegar", "1 Tbsp. prepared mustard", "1 Tbsp. sugar or more to taste", "salt and pepper"]
["Brown hamburger and onion.", "Mix catsup or chili sauce, vinegar, mustard, sugar, salt and pepper.", "Pour over hamburger and onion.", "Simmer a few minutes.", "Serve on buns."]
["hamburger", "onion", "catsup", "vinegar", "mustard", "sugar", "salt"]