French Onion Chicken Bake 🧅🍗🧀

Tender chicken breasts baked in a rich caramelized onion sauce, topped with melted Gruyere and Parmesan.

Ingredients

• 4 boneless, skinless chicken breasts
• 2 tablespoons olive oil
• 2 large onions, thinly sliced
• 2 cloves garlic, minced
• 1 tablespoon all-purpose flour
• 1 cup beef or chicken broth
• 3 cups shredded Gruyere cheese (or Swiss cheese)
• ½ cup shredded Parmesan cheese
• Salt and pepper, to taste
• Fresh thyme leaves (optional, for garnish)

Instructions

1. Caramelize Onions: Heat olive oil in a skillet over medium heat. Add sliced onions and cook slowly for 20–25 minutes until golden and caramelized. Stir in garlic and cook 1–2 minutes.
2. Make Sauce: Sprinkle flour over onions, stir well, then add broth. Simmer until thickened into a rich sauce. Season with salt and pepper.
3. Prepare Chicken: Place chicken breasts in a greased baking dish. Pour onion sauce over the chicken.
4. Add Cheese: Sprinkle Gruyere and Parmesan evenly over the top.
5. Bake: Bake at 375°F (190°C) for 25–30 minutes, until chicken is cooked through and cheese is melted and bubbly.
6. Serve: Garnish with fresh thyme leaves if desired. Serve hot with crusty bread or mashed potatoes.

Details

• Prep Time: 15 minutes
• Cook Time: 45 minutes
• Total Time: ~1 hour
• Servings: 4

Tip: For extra depth of flavor, deglaze onions with a splash of white wine before adding broth.