Preheat your oven to 400°F (200°C) and line a baking sheet with parchment paper.

In a large mixing bowl, combine the ground sausage, breadcrumbs, Parmesan cheese, egg, garlic powder, onion powder, salt, and pepper. Mix until well incorporated.

Shape the mixture into meatballs about one inch in diameter and place them on the prepared baking sheet.

Bake the meatballs for 15-20 minutes, until they reach an internal temperature of 160°F (70°C).

In a saucepan over medium heat, combine the grape jelly and barbecue sauce until smooth.

Once baked, transfer the meatballs to a mixing bowl and coat with the warm grape jelly sauce.

Serve the meatballs warm, garnished with chopped parsley if desired.