Instructions:

1. Preheat Oven: 🔥 Set your oven to 375°F (190°C).
2. Prepare Meatloaf Mixture: 🍖 In a large bowl, mix ground beef, pork, chopped onion, garlic, breadcrumbs, egg, milk, Worcestershire sauce, salt, and pepper. Stir until well combined.
3. Shape and Bake: 🍞 Form the mixture into a loaf shape and place it on a baking sheet or loaf pan. Bake for 45-50 minutes.
4. Caramelize Onions: 🍳 While the meatloaf bakes, melt butter in a skillet over medium heat. Add the sliced onions and cook until soft. Stir in brown sugar and cook until golden and caramelized.
5. Add Topping: 🍽️ Remove the meatloaf from the oven. Spread the caramelized onions on top and return to the oven for 10 more minutes.
6. Serve: ⏱️ Let the meatloaf rest for 5 minutes before slicing. Garnish with thyme if desired and serve warm.