Sloppy Joes
["1 lb. hamburger meat", "1 sm. onion", "1/2 tsp salt and pepper", "3/4 c. catsup", "1 tsp. mustard", "1 tbsp. vinegar"]
["Simmer for about 15 minutes and serve on buns."]
["hamburger", "onion", "salt", "catsup", "mustard", "vinegar"]