Preheat the crockpot. In a bowl, whisk together the ketchup, grape jelly, and garlic powder. Add the frozen meatballs to the crockpot and pour the jelly mixture over them. Stir to coat evenly.
Cover and cook on high for 4 hours, stirring occasionally if possible.
Serve the meatballs warm, skewered with toothpicks for a fun appetizer.
Notes
Perfect for holiday gatherings or casual parties. These sweet and savory meatballs are always a hit.