Here’s a rich, cozy French Onion Chicken Bake — all the flavor of French onion soup with juicy baked chicken.
🧅🍗 French Onion Chicken Bake
Ingredients
- 3–4 boneless, skinless chicken breasts
- 2 large onions, thinly sliced
- 2 tbsp butter
- 1 tbsp olive oil
- 2 cloves garlic, minced
- 1 tsp fresh thyme (or ½ tsp dried)
- ½ cup beef broth
- 1 tsp Worcestershire sauce
- Salt & black pepper to taste
- 1–1½ cups shredded Gruyère or mozzarella cheese
Instructions
- Caramelize the onions (key step!)
- Heat butter and oil in a large skillet over medium-low heat.
- Add sliced onions with a pinch of salt.
- Cook 20–30 minutes, stirring occasionally, until deeply golden and soft.
- Stir in garlic and thyme; cook 30 seconds.
- Deglaze
Add beef broth and Worcestershire sauce. Simmer 2–3 minutes until slightly reduced. - Prepare chicken
- Preheat oven to 375°F (190°C).
- Season chicken with salt and pepper.
- Sear in a skillet (2–3 minutes per side) just to brown.
- Assemble
- Place chicken in a baking dish.
- Spoon caramelized onions over each piece.
- Top generously with cheese.
- Bake
Bake 20–25 minutes until chicken reaches 165°F (75°C) and cheese is bubbly and golden. Broil 2–3 minutes for extra browning if desired.
Serving Ideas
- Mashed potatoes
- Rice
- Buttered egg noodles
- Crusty bread
Shortcut Tip
Use pre-caramelized onions or cook onions ahead of time — they can be refrigerated up to 3 days.
If you’d like, I can also give you:
- A one-pan version
- A slow cooker version
- Or a low-carb / keto-friendly version 🧀
