Preheat the oven to 350°
Combine the meatball ingredients. In a large bowl lightly combine the 1 lb ground ham, 1 lb ground beef, 1 cup graham cracker crumbs, ¾ cup milk, and 1 egg. Make large meatballs. Form the mixture into large meatballs, about ⅓ cup in size each. Place into a 9x13 baking dish. You will have about 12-15 meatballs.
Whisk together the sauce ingredients & pour over meatballs. In another bowl whisk together the can of condensed tomato soup, 1 cup brown sugar, ½ cup white vinegar, and 1 tsp dry mustard. Pour the sauce over the meatballs.
Bake 1 hour. Bake in the oven, uncovered, for 1 hour, basting the tops of the ham balls with the sauce once or twice during cooking.
Cool & eat! Let the meatballs cool for about 5-10 minutes and then serve with mashed or baked potatoes and veggies.
