sweet sour meatballs

The other day I was craving sweet sour meatballs, luckily, there was a recipe in one of the cookbooks I have.

Barbecued Meatballs makes 12 meatballs : from "Wisteria Delights"

Meatballs:
1 pound ground beef (turkey or chicken)
1 teaspoon salt
1/2 teaspoon pepper
2/3 cups milk
3/4 cups oatmeal (uncooked)
1 tablespoon fat

Barbecue Sauce
1 cup ketchup
3 tablespoons brown sugar
2 tablespoons vinegar
1.5 tablespoons worcestershire sauce
1.5 tablespoons shoyu (soy sauce)
2 teaspoons prepared mustard

Combine all the ingredients for the meatballs except the fat and mix well.
Shape into 12 balls.
Brown the meatballs in hot fat in skillet.
While meat browns, prepare barbecue sauce.

Combine all the ingredients for the sauce and pour over meatballs.
Cover pan and cook about half an hour more.

NOTES: First off, for the meatballs, I only used diced onions and a pork-beef mixture.

I should have added the milk and oatmeal to keep the meatballs moist, they were a little tough.

I cooked the meatballs under the broiler for about 10 minutes.

Instead of using 1 cup of ketchup, I used a can of diced tomatoes.

I cut the sugar back to 2 tablespoons.

I didn't have worcestershire sauce, so I used tonkatsu sauce instead.

I also should have added the mustard and shoyu like the recipe said because this turned out to be more on the sweet side.

Still this hit the spot, one of my favorite comfort foods.

UPDATE: nowadays I make the sweet sour sauce like this:
1 can diced tomato
1 tablespoon tomato paste
1 tablespoon brown sugar
1 tablespoon vinegar
.5 tablespoon worcestershire sauce
1 tablespoon shoyu
1 teaspoon grainy mustard