Add the cranberry sauce, ketchup, brown sugar, and lemon juice – stir to combine.
Cover and cook on low for 6 hours, stirring occasionally.
Enjoy!
Notes
The long cooking time ensure the sauce soaks into the meatballs and they will have much more flavor than just cooking them until done.Stovetop: Warm the sauce in a pot, add the frozen meatballs, then simmer until heated through and coated.