1-Preheat the broiler and line a sheet pan with foil, then coat it with cooking spray to prevent sticking.

2-In a large bowl, combine 2 pounds 90% lean ground beef, 2 eggs, 1/2 cup breadcrumbs, 1/4 cup finely diced onion, 1 teaspoon salt, 1/2 teaspoon black pepper, and 1/2 teaspoon garlic powder; mix thoroughly until well blended.

3-Shape the mixture into 1-inch meatballs and place them on the prepared pan for even cooking.

4-Broil the meatballs for 8-10 minutes until they turn golden brown, ensuring they’re cooked through.

5-While the meatballs broil, melt 1 1/2 cups grape jelly using 30-second increments in the microwave or over medium heat in a saucepan.

6-Whisk in the 12-ounce bottle of chili sauce to the melted jelly, creating a smooth sweet and sour sauce that coats the meatballs perfectly.

7-Coat a slow cooker with cooking spray, add the broiled meatballs, pour the sauce over them, and toss to coat evenly.

8-Cook on low heat for 3 hours to let the flavors meld.

9-Sprinkle 2 tablespoons parsley on top before serving for a fresh finish.