Comfort Meatballs

This a recipe from The Pioneer Woman's cookbook. They were delicious and different. I just wished I had doubled the recipe so we had more left to freeze for later. She pictured them served with mashed potatoes, which seemed a little strange to me, but we went for it anyway and loved the combo.

Ingredients:
FOR MEATBALLS
1-½ pound Ground Beef
¾ cups Oats
1 cup Milk
3 Tablespoons Very Finely Minced Onion
1-½ teaspoon Salt
Plenty Of Ground Black Pepper, to taste
FOR COOKING MEATBALLS
1 cup All-Purpose Flour
Canola Oil
FOR SAUCE
1 cup Ketchup
2 Tablespoons Sugar
3 Tablespoons Vinegar
2 Tablespoons Worcestershire
4-6 Tablespoons Onion (I used 6)
1 dash Tabasco

Directions:
Preheat oven to 350 degrees.
Combine all meatball ingredients. Roll into medium-small balls and place on a cookie sheet. Place sheet in freezer for five minutes. (I refrigerated for a few hours)
After 5 minutes, remove meatballs from freezer and immediately dredge in unseasoned flour.
Brown meatballs in canola oil until just brown. Place into a baking dish.
Combine all sauce ingredients. Pour over meatballs and bake at 350 degrees for 45 minutes.