French Onion Chicken with Melted Gruyere and Parmesan Recipe
French Onion Chicken combines tender, golden-browned chicken breasts with a rich, flavorful caramelized onion sauce infused with fresh herbs and white wine, topped with melted Gruyere and Parmesan cheese for a comforting, elegant dish perfect for weeknight dinners or special occasions.
- Prep Time: 20 minutes
- Cook Time: 1 hour
- Total Time: 1 hour 20 minutes
- Yield: 4 servings
- Category: Main Course
- Method: Stovetop and Broiling
- Cuisine: French-inspired
Ingredients
For the Onion Mixture
- 2 large yellow onions (1 1/3 lbs), halved then thinly sliced 1/6″ thick
- 3 Tbsp butter
- Salt and black pepper, to taste
- 1 1/2 tsp minced garlic
- 1 tsp minced fresh rosemary
- 1 tsp minced fresh thyme
- 1/2 cup dry white wine (such as Sauvignon Blanc)
- 2 cups low-sodium chicken broth (homemade is best)
- 1 1/2 tsp cornstarch, mixed with 1 Tbsp low-sodium chicken broth
For the Chicken
- 4 (6 oz) chicken breasts, flattened with a meat mallet to even thickness
- 1/3 cup flour
- 1 Tbsp olive oil
- 3/4 cup (3 oz) shredded Gruyere cheese
- 1/4 cup (0.5 oz) finely shredded Parmesan cheese
Instructions
- Caramelize Onions: In a heavy bottom 4-quart saucepan, melt butter over medium heat. Add thinly sliced onions and 2 pinches of salt, sauté for 10 minutes, tossing occasionally to soften them.
- Cook until Golden and Broken Down: Reduce heat to medium-low and continue cooking the onions for about 30 more minutes, stirring every 2 to 3 minutes and scraping the bottom to prevent burning. The onions should become deeply caramelized and softened. Add minced garlic, rosemary, and thyme, then cook for an additional 1 minute.
- Deglaze and Simmer: Pour in the white wine and chicken broth while scraping up the browned bits from the bottom of the pan. Bring to a simmer over medium heat, then reduce to medium-low and simmer for 15 minutes until the liquid reduces and the alcohol scent dissipates, stirring occasionally.
- Prepare Chicken for Cooking: While the onion mixture simmers, heat olive oil in a 12-inch skillet over medium-high heat. Season chicken breasts with salt and pepper and dredge each piece in flour, coating both sides and shaking off excess.
- Sear Chicken: Transfer the floured chicken breasts to the skillet and cook until golden brown on each side and the internal temperature reaches 160°F, about 5 to 6 minutes per side.
- Thicken Onion Sauce: Whisk the cornstarch mixture (cornstarch and 1 Tbsp chicken broth) and pour it into the reduced onion mixture. Cook while whisking for 30 seconds until thickened. Adjust seasoning with salt and pepper to taste.
- Combine Sauce and Chicken: Pour the thickened onion mixture around the chicken breasts in the skillet.
- Broil with Cheese: Position the oven rack near the top third of the oven and preheat the broiler. Cover chicken breasts with shredded Gruyere and Parmesan cheese. Broil for about 1 minute until the cheese melts and bubbles. Watch closely to prevent burning.
- Serve: Spoon some of the onion sauce over the chicken when plating and serve immediately.
Notes
- Flattening chicken breasts helps them cook evenly and stay juicy.
- Use low-sodium chicken broth to better control the saltiness of the dish.
- Watching the onions closely during caramelization prevents burning and ensures a rich flavor.
- Broil cheese on top just long enough to melt without burning for best texture.
- Pair this dish with crusty bread or roasted vegetables for a complete meal.
