Zesty Meat Balls
["1 1/2 lb. ground beef (ground round or chuck is best; less fat)", "1 small onion", "1/2 c. oatmeal", "1 tsp. pepper", "1/2 c. ketchup", "1 tsp. salt", "1/2 c. ketchup", "8 Tbsp. vinegar", "8 Tbsp. brown sugar", "dash of Worcestershire sauce"]
["Combine meat, chopped onion, oatmeal, pepper, 1/2 cup ketchup and salt; mix well.", "Shape into medium size meat balls.", "Place in large baking dish.", "Combine 1/2 cup ketchup, vinegar, brown sugar and Worcestershire sauce.", "Bring to a boil.", "Pour over meat balls and bake in a 300\u00b0 oven until brown and well done, about 35 to 40 minutes."]
["ground beef", "onion", "oatmeal", "pepper", "ketchup", "salt", "ketchup", "vinegar", "brown sugar", "Worcestershire sauce"]