Let’s dive into the step-by-step process of making these delicious meatballs and gravy:

1. Preheat your oven to 375°F. Line a baking sheet with parchment paper.
2. In a large bowl, mix together the ground beef, breadcrumbs, Parmesan cheese, egg, garlic, salt, and pepper. Use your hands to blend the ingredients until just combined.
3. Shape the mixture into 1-inch meatballs and place them on the prepared baking sheet. Bake for 20 minutes, or until the meatballs are browned and cooked through.
4. While the meatballs are baking, heat olive oil in a skillet over medium heat. Stir in the flour and cook for about 1 minute, until it forms a roux.
5. Gradually whisk in the beef broth, ensuring there are no lumps. Add the Worcestershire sauce and thyme, bringing the mixture to a simmer. Cook until the gravy thickens, about 5 minutes.
6. Stir in the heavy cream and let the gravy simmer for another 2 minutes. Season with additional salt and pepper to taste.
7. Once the meatballs are done, transfer them to the skillet, coating them with the gravy.
8. Serve hot, garnished with fresh herbs if desired.

One tip I learned from my grandmother is to always taste as you go. Adjust the seasoning of the gravy according to your preference, making it truly your own.