French Onion Chicken Bake
This French Onion Chicken Bake brings together caramelized onions, tender chicken, rich broth, balsamic depth, and melty cheese for a comforting yet easy weeknight dinner. Inspired by classic French onion flavors, this dish tastes gourmet without requiring complicated steps.
Equipment
- Skillet
- Baking Dish
Ingredients
Onion Base
- 4 onions, sliced
- 4 Tbsp unsalted butter
- 4 cloves garlic, finely chopped
- 1 tsp fresh thyme leaves
Sauce
- 2/3 cup low-sodium beef broth
- 2 Tbsp aged balsamic vinegar
- 1/2 tsp sea salt
- 1/2 tsp freshly ground black pepper
Chicken & Cheese
- 4 boneless skinless chicken breasts
- 1 cup shredded mozzarella cheese
- 1/2 cup grated Parmesan cheese
Instructions
- Melt the butter in a large skillet over medium heat. Add sliced onions and cook for 12–15 minutes until golden and caramelized. Add garlic and thyme in the last 1–2 minutes.
- Pour in the beef broth and balsamic vinegar. Stir and scrape up any browned bits. Let simmer for 2 minutes. Season with salt and pepper.
- Preheat oven to 375°F (190°C). Grease a baking dish and place the chicken breasts inside. Pour the onion mixture over the chicken.
- Sprinkle mozzarella evenly over the chicken, followed by Parmesan for a golden crust.
- Bake for 20–25 minutes, or until chicken reaches 165°F (74°C) and cheese is bubbly. Broil for 2 minutes if desired for extra browning.
- Let rest for 5 minutes before serving. Garnish with fresh thyme or parsley.
Notes
For a lighter version, substitute olive oil for part of the butter or reduce the cheese. Serve with mashed potatoes, rice, or roasted vegetables.