Cheesy French Onion Meatballs: The Ultimate Comfort Food - Recipes by Lena

Ingredients

• 1 lb (450g) ground beef
• 1/2 cup breadcrumbs
• 1/4 cup grated Parmesan cheese
• 1 egg
• 2 cloves garlic, minced
• 1 tsp onion powder
• 1 tsp Italian seasoning
• Salt and pepper, to taste
• 2 tbsp olive oil
• 2 large onions, thinly sliced
• 2 tbsp butter
• 1 tsp sugar
• 2 cups beef broth
• 1/2 cup dry white wine (optional)
• 1 tbsp Worcestershire sauce
• 1 tbsp all-purpose flour
• 1 cup shredded Gruyère or Swiss cheese
• Fresh parsley for garnish (optional)