Transform your favorite French onion soup into a hearty casserole dish with this French Onion Chicken Bake. This one-pot recipe combines the flavors of caramelized onions, tender chicken breast, and rich cheese for the ultimate comfort food.
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If you love classic French onion soup you need to try this delicious French onion chicken recipe. With deceptively simple ingredients and loads of flavor, this dinner recipe is going to be a hit.
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📖Why My Recipe Works
- Soy Sauce- Most recipes call for Worcestershire sauce or balsamic vinegar mixed with sugar. This recipe skips all those ingredients and uses only sweet onions and soy sauce which is what French Onion soup mix actually is. Did you know that? This recipe will give you the closest flavor to French onion soup without a mix.
- Quick- This recipe only needs five minutes to prepare and less than an hour from start to finish. Plus, you’ll have an easy cleanup because you only need one pot!
🧾Ingredient Notes
- Chicken Breast - I used boneless skinless chicken breast, but you can also use boneless chicken thighs or chicken cutlets. If they are too thick, cut them in half horizontally. Make sure to cut them equal in size.
- Cheese - Gruyere cheese adds a rich and cheesy flavor. You can also use grated Swiss or sliced provolone cheese. I don't recommend that you use mozzarella, as it’s too plain and doesn’t have enough flavor for this recipe.
- Beef Broth - You can also use chicken broth, but beef stock will add more flavor.
- Soy Sauce - You can also use gluten-free tamari to make this recipe GF.
- Unsalted Butter - Make sure your butter is unsalted; otherwise, adjust the salt you put into your dish.
- Onions - This recipe uses two kinds of onions to maximize flavor and sweetness. You can substitute white onions with yellow onions, although they have a slightly stronger flavor. If you don't have sweet onions (Vidalia onions), use a mix of white onions and yellow onions and add 1-2 teaspoons of sugar or balsamic vinegar.
⏲️How to Make French Onion Baked Chicken
Filet the chicken or pound the chicken thin. Searing the chicken adds flavor so don't skip this step.
The sweet onion flavor comes from slowly carmelizing the onions.
Nestle the chicken into the onion mixture before topping it with grated cheese.
Bake until the chicken is cooked through. You can broil the top for a few minutes to give the cheese that gooey brown and crusty finish.
🥗What to Serve with French Onion Chicken
You can serve it with almost anything, like a simple green salad, roasted vegetables, or crusty bread. Some of my favorite dishes to serve it with are Parmesan Roasted Zucchini and Squash, Roasted Carrots and Asparagus, and Rustic Boursin Mashed Potatoes. Or whip up a small batch of mashed potatoes, perfect for the size of this recipe.
You can even turn this into a French onion chicken pasta by serving over fresh pasta.
Expert Tip
Use low heat to caramelize the onions properly. Allow them to cook slowly and stir occasionally until they are golden brown. It can take around 15 to 30 to caramelize them properly.
More Delicious Chicken Recipes
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📖 Recipe Card
French Onion Chicken Bake with Gruyere
Ingredients
- 1 pound boneless skinless chicken breast
- ½ teaspoon kosher salt
- ½ teaspoon black pepper
- 2 Tablespoons olive oil
- ¾ cup low sodium beef broth divided
- 3 Tablespoons unsalted butter
- 2 cups white onions thinly sliced into quarter moons
- 2 cups sweet onions thinly sliced into quarter moons
- 3 cloves garlic minced
- 1 Tablespoon soy sauce or gluten-free tamari
- 1 teaspoon dried thyme
- 1 ½ cups gruyere cheese or swiss, shredded
- fresh parsley minced for garnish
Instructions
- Preheat the oven to 400 F degrees.
- Lay the chicken breast on a cutting board, hold one hand down while you slice horizontally to make 2 thin slices of chicken. Season with salt and pepper. Repeat for the remaining chicken breasts.1 pound boneless skinless chicken breast, ½ teaspoon kosher salt, ½ teaspoon black pepper
- Heat the oil in an oven safe skillet over medium heat. Sear the chicken for 2 minutes on each side, until golden brown (the chicken will not be cooked through). Remove chicken from skillet and set aside.2 Tablespoons olive oil
- Add a ¼ cup of beef broth to the pan and scrape up the brown bits from the bottom of the pan. Reduce the broth by half and add the butter. Once melted add the onions. Cook, stirring occasionally, until onions are golden brown and caramelized, about 15 minutes.¾ cup low sodium beef broth, 3 Tablespoons unsalted butter, 2 cups white onions, 2 cups sweet onions
- Add the garlic, soy sauce, and thyme then saute for 30 seconds. Add the beef broth and bring to a simmer, cook for 3 to 5 minutes to reduce the stock slightly.3 cloves garlic, 1 Tablespoon soy sauce, 1 teaspoon dried thyme
- Add back in the chicken and spoon the onions on top. Top each piece of chicken with a little of the shredded cheese. Bake for 15 to 20 minutes or until the chicken is cooked through (an internal temperature of 165 F) and the cheese is melted. Topped with minced parsley.1 ½ cups gruyere cheese, fresh parsley
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Notes
- You can substitute gluten-free soy sauce for regular.
- You can use chicken stock instead of beef broth.
- If you don't have sweet onions (Vidalia onions), use a mix of white onions and yellow onions and add 1-2 teaspoons of sugar or balsamic vinegar.
- Storing Leftovers- Store leftover chicken in an airtight container in the fridge for up to five days. Reheat it in the microwave for 1-2 minutes or in the oven at 325 F for 5-8 minutes or until thoroughly warmed.
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