Iowa Ham Balls
["3 1/2 lb. ground ham", "1 1/2 lb. ground beef", "3 eggs, beaten", "2 c. milk", "3 c. graham cracker crumbs", "2 cans (10 3/4 oz. each) tomato soup (undiluted)", "3/4 c. vinegar", "2 1/2 c. packed brown sugar", "1 tsp. prepared mustard"]
["In large mixing bowl, combine ham, beef, eggs, milk and graham cracker crumbs.", "Using a 1/3 cup measure, shape mixture into 2-inch balls.", "Place in two large shallow roasting pans. Combine all remaining ingredients and pour over balls.", "Bake at 325\u00b0 for 1 hour, basting frequently with sauce.", "Yield:", "about 15 servings."]
["ground ham", "ground beef", "eggs", "milk", "graham cracker crumbs", "tomato soup", "vinegar", "brown sugar", "mustard"]