Introducing a savory masterpiece that combines the rich, caramelized goodness of French onion soup with tender chicken breasts and gooey Swiss cheese. Our French Onion Chicken Skillet is the ultimate comfort food, perfect for satisfying your cravings and impressing your dinner guests. Let’s dive into this irresistible recipe.
Who Will Love This Recipe?
The French Onion Chicken Skillet is a culinary delight suitable for a variety of tastes and preferences. It’s perfect for:
- French Onion Soup Lovers: If you enjoy the deep, savory flavors of French onion soup, you’ll fall head over heels for this dish.
- Busy Home Cooks: This one-pan wonder is both easy to prepare and clean up, making it an ideal choice for busy weeknight dinners.
- Cheese Aficionados: Melted Swiss cheese crowning the dish adds a delightful creaminess and savory depth that cheese lovers will adore.
- Dinner Party Hosts: Impress your guests with a gourmet-inspired meal that’s deceptively simple to prepare.
What Sets It Apart?
Our French Onion Chicken Skillet boasts a range of appealing qualities:
- Caramelized Onions: Sliced Vidalia onions are caramelized to perfection, lending the dish a sweet and savory base that’s quintessential to French onion soup.
- Tender Chicken: Boneless, skinless chicken breasts or thighs are seasoned and seared to a golden brown, ensuring they’re moist and flavorful.
- Beef Gravy: The rich and savory beef broth-based gravy ties everything together, infusing each bite with incredible depth of flavor.
- Gooey Swiss Cheese: A generous layer of grated Swiss cheese blankets the dish, melting into a sumptuous, golden-brown crust in the oven.
Tips for the Perfect French Onion Chicken Skillet
To ensure your French Onion Chicken Skillet turns out perfectly, consider these helpful tips:
- Cheese Selection: Opt for high-quality Swiss cheese for the best melting and flavor. Gruyère is another excellent choice if you want to experiment.
- Chicken Options: You can use either chicken breasts or thighs, depending on your preference. Dark meat (thighs) tends to be more flavorful and forgiving if slightly overcooked.
- Serving Suggestions: This dish pairs wonderfully with mashed potatoes, steamed vegetables, or a simple green salad.
- Balsamic Vinegar: Be cautious not to burn the balsamic vinegar when caramelizing the onions; it should darken but not turn black.
- Adjust Seasoning: Taste the gravy before adding the chicken and adjust the seasoning if needed.

Ingredients
- 2 pounds Vidalia onions, sliced
- 2 pounds boneless, skinless chicken breasts or thighs
- 2 cups beef broth
- 1 cup Swiss cheese, grated
- 1/3 cup extra-virgin olive oil, divided
- 2 tablespoons all-purpose flour
- 2 teaspoons balsamic vinegar
- 1/2 teaspoon dried thyme
- 1/2 teaspoon dried sage
- Kosher salt and freshly ground pepper, to taste
Instructions
Step 1: Caramelize the Onions
Preheat your oven to 350º F.
Heat 2 tablespoons of olive oil in a large, oven-proof pan or skillet over medium heat.
Add the sliced onions, season with salt, and cook for 15-20 minutes, or until they become soft and caramelized.
Stir in the balsamic vinegar and continue cooking for another 3-5 minutes, allowing the onions to darken without burning.
Remove the caramelized onions from the heat and transfer them to a medium bowl.
Step 2: Sear the Chicken
In the same skillet, heat the remaining olive oil over medium-high heat.
Season the chicken breasts (or thighs) with salt, freshly ground pepper, dried thyme, and dried sage.
Place the seasoned chicken in the skillet and sear it on both sides until it turns a beautiful golden brown.
Once seared, remove the chicken from the skillet and set it aside.
Step 3: Create the Beef Gravy
Pour the beef broth into the skillet and bring the mixture to a boil, scraping up any flavorful bits stuck to the bottom of the pan.
Reduce the heat to medium-low and whisk in the all-purpose flour, stirring until the mixture thickens. Cook for 5-7 minutes until it reaches a smooth and thick consistency. Adjust the seasoning if necessary.
Step 4: Combine and Bake
Return the seared chicken and caramelized onions to the skillet. Stir everything together in the beef gravy.
Top the skillet with the grated Swiss cheese, creating a generous layer.
Transfer the skillet to your preheated oven and bake until the cheese is perfectly melted and bubbly, and the chicken is cooked through.
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