Follow these simple steps to create your very own French Onion Meatballs:

1. Preheat Oven: Preheat your oven to 375°F (190°C) and line a baking sheet with parchment paper.
2. Sauté Onions: In a skillet, heat olive oil and butter over medium heat. Add the chopped onion and cook until caramelized, about 10 minutes. Stir occasionally.
3. Mix Meatball Ingredients: In a large bowl, combine ground beef, ground pork, breadcrumbs, grated Parmesan cheese, minced garlic, egg, Worcestershire sauce, dried thyme, salt, and black pepper. Mix well until combined.
4. Incorporate Onions: Once the onions are caramelized, let them cool slightly, then add them to the meat mixture. Mix until just combined.
5. Form Meatballs: With your hands, form the mixture into meatballs, roughly 1 to 1.5 inches in diameter. Place them on the prepared baking sheet.
6. Bake Meatballs: Bake the meatballs in the preheated oven for 25-30 minutes or until they’ve reached an internal temperature of 160°F (71°C).
7. Prepare Broth: While the meatballs are baking, pour the beef broth into a large pot and bring it to a simmer over medium heat.
8. Add Meatballs to Broth: Once the meatballs are cooked, gently transfer them to the simmering beef broth. Cook for another 5-10 minutes to allow flavors to meld.
9. Serve with Cheese: Ladle the meatballs and broth into bowls. Top each serving with shredded Gruyère cheese.
10. Melt Cheese: For an extra decadent touch, broil the bowls in the oven for 2-3 minutes until the cheese is bubbly and golden.

These steps will lead you to create a dish that’s not only mouthwatering but also memorable!