Tender & Zesty French Meatballs Recipe: A Joyful Dinner Surprise

Ingredients

• 1 lb (0.45 kg) 90% lean ground beef
• 6 oz (170 g) freshly grated Gruyere cheese
• 4 medium yellow onions, thinly sliced
• 2 cups low-sodium chicken broth
• 2 tbsps olive oil
• 2 tbsps unsalted butter
• 1 large egg, beaten
• ⅓ cup panko breadcrumbs
• 3 cloves garlic, thinly sliced
• 10 tsps Worcestershire sauce
• 1 tbsp all-purpose flour
• 2 bay leaves
• 1 tsp Dijon mustard
• 1 tsp fresh thyme leaves
• 12 tsps kosher salt
• 1 tsp kosher salt
• ½ tsp freshly ground black pepper
• Toasted baguette slices, for serving