Skip to Content

French Onion Chicken Thighs

I took my inspiration for this dish of French Onion Chicken Thighs from everyone’s favorite soup, and these results are out of this world delicious!!!

A vertical closeup of French Onion Chicken Thighs on a blue plate and a filled casserole dish in the background.

I originally shared this recipe in 2016. I’ve recently updated this post with additional information, including a recipe card complete with nutritional information, but the recipe itself has remained unchanged.

**Please Note – The printable recipe card with detailed instructions, complete ingredient measurements, and nutritional information for making French Onion Chicken Thighs is available at the end of this post. OR you can hit the “jump to recipe” button (found above) to be taken directly to the recipe. 

CLICK ON THIS BOX TO LIKE AND SUBSCRIBE TO MY KUDOS KITCHEN YOUTUBE CHANNEL. SEE YOU THERE! 🙂

A vertical photo of a white 9x13 baking dish filled with French Onion Chicken thighs topped with melted cheese.

The ingredient list:

**Note – The following lists of ingredients plus kitchen tools and equipment contain affiliate links (highlighted in blue) for your consideration and shopping convenience. #CommissionsEarned

Kitchen tools and equipment:

Why this recipe works:

When it comes to French Onion soup, I can’t decide what my favorite part about the soup is.

Whether it’s the deep rich broth, the abundance of sweet caramelized onions, the hearty slice of bread crouton that’s soaked in the broth and floats the perfectly browned and melted cheese.

Since I love every part of the soup, I’ve incorporated every part into this recipe, including the bread crouton. It acts as a platform for the moist and meaty chicken thigh and the melted cheese!

Be still my French onion soup-loving heart!!!

How this recipe came to be:

If I’m totally honest, the highest viewed recipe on my blog is this one for French Onion Pork Chops, so I figured I’d be smart to give some of that same love to the chicken.

After all, why should only the pork chop stand alone when it comes to all that French onion deliciousness?

What I wrote about this recipe for French Onion Chicken in 2016:

Even though my husband and I are “empty-nesters” I still can’t seem to cook for only two people. Call me crazy, but I like to have plenty of leftovers so during the week I won’t have to cook as often, and because my husband likes to take the leftovers to work the next day for lunch.

The day Mark took these leftovers to work, he called me from the office to tell me how much he enjoyed his lunch, and that it was even better than what he’d remembered from the night before.

I’m also very lucky that our two sons come over relatively often to see what’s in the fridge.

I’m happy and thrilled to report that they both enjoyed this dish as much as we did the very night I made it and that it garnered a full two thumbs up from the entire family.

Winner, winner, French Onion Chicken for dinner!

A few French Onion Chicken Thighs on a pretty blue plate with silver serving utensils, melted cheese, and caramelized onions.

How long does this recipe take from start to finish?

Approximately 60 minutes.

Making French onion chicken thighs is easy, and the only thing that requires time is the caramelizing of the onions which take approximately 20 minutes.

From there the assembling of the other ingredients is pretty speedy.

The oven time is 35-40 minutes so you can rest and have a glass of wine, or help the kids with their homework while the oven does the remainder of the work.

Can chicken breast be substituted for the chicken thighs in this recipe?

Yes, but you may need to cut the breasts in half so they fit neatly on top of the French bread.

Also, be aware that the cooking time will be different if using chicken breast in place of the chicken thighs.

Can bone-in skin-on chicken thighs or breast be used for this recipe:

Yes, but be aware that the cooking time will be longer using bone-in chicken (breasts or thighs) then with a boneless selection of chicken.

What is the proper internal temperature for cooked chicken?

A chicken is properly cooked when an instant-read thermometer reaches 145-degrees.

Can the wine be left out of this recipe?

Yes.

Feel free to substitute additional broth or even apple juice or cider in place of the wine if desired.

The step-by-step photo instructions for making French onion chicken thighs:

  • Slice the onions and place them in a large skillet with butter, oil, salt, pepper, and dried thyme.
  • Cook, stirring occasionally over medium heat until they turn semi-translucent and start to brown.
  • Add minced garlic.
  • Continue cooking the onions until they develop a deep golden color (approximately 20 minutes).
  • Add the chicken broth, and white wine and continue cooking and stirring occasionally until the liquid evaporates.
  • Spoon the caramelized onions evenly into a 9″ x 13″ casserole dish.
  • Wipe the skillet clean with a paper towel.
  • Slice the French bread into 3″ pieces.
  • Toast the bread, cut side down, in the skillet the oil until toasted and browned (watch carefully so it doesn’t burn).
  • Remove the toasted bread from the skillet and place it cut side up on top of the caramelized onion in the casserole dish.
  • Place a boneless, skinless chicken thigh atop each slice of bread.
  • Season each chicken thigh with salt and pepper.
  • Bake the in a preheated 350-degree oven for 35 minutes.
  • Remove the dish from the oven and brush the chicken lightly with balsamic vinegar.
  • Top each chicken breast with shredded Swiss (or Gruyere) cheese and sprinkle with dried thyme.
  • Return the dish to the oven for an additional 10 minutes to melt the cheese.
  • To serve, make sure to spoon some of the caramelized onions with each portion of bread and chicken.
A vertical closeup of some French Onion Chicken Thighs on a blue platter with serving utensils.

Learn how to caramelize onions quickly from ATK:

Additional recipes with caramelized onions:

*French Onion Pork Chops (shown below)

All the flavors you love in a traditional French onion soup are captured in this recipe for French Onion Pork Chops. Make them ASAP and I promise you won’t be sorry!

Two cheesy French onion pork chops on a blue scalloped plate

*German Onion Soup (not shown)

German Onion Soup has plenty of caramelized onions, beer, bratwurst, and pretzel roll croutons. This delicious and hearty caramelized onion soup with a German flair will soon become a family favorite!

*French Onion Sloppy Joes (shown below)

When you want to frugally feed a crowd for game day, or a hungry family at dinner, it doesn’t get much tastier than French Onion Sloppy Joes!

A open face sandwich of French Onion Sloppy Joes on a blue plate with melted cheese and caramelized onions.

*Ultimate Grilled Cheese Sandwich (not shown)

Turkey deli meat, smoked cheddar cheese, red bell pepper, and caramelized onions come together in an ultimate grilled cheese sandwich like no other. If you’re anything like me, you are going to love it!!

*French Onion Chicken Thighs (shown below) THIS IS THE PLACE!!

A vertical closeup image along with a title text overlay graphic for French Onion Chicken Thighs with melted cheese, bread, and caramelized onions on a blue plate.

Below is the printable recipe card along with the exact ingredient measurements and nutritional information for making today’s French onion smothered chicken thighs.

If you’ve made this recipe, or are excited to make this recipe, I’d appreciate it if you’d take a moment to leave it a star rating in the recipe card, along with a comment if you’re so inclined. Thank you. 🙂

French Onion Chicken Thighs

Renee – Kudos Kitchen
French Onion Chicken Thighs are everything you love about the iconic soup, including the toasted crouton and the abundance of melted cheese.
5 from 4 votes
Prep Time 20 mins
Cook Time 40 mins
Total Time 1 hr
Course main course – chicken
Servings 6 servings
Calories 958 kcal

Ingredients
  

  • 3 pounds boneless, skiness chicken thighs
  • 2 tablespoons butter
  • 4 large sweet onions, sliced
  • 2 teaspoon salt divided
  • ½ teaspoon pepper divided
  • teaspoon dried thyme divided
  • 2 cloves garlic minced
  • ½ cup beef broth
  • ¼ cup white wine
  • 3 tablespoons olive oil
  • 12 slices French bread cut into 3″ pieces
  • tablespoon balsamic vinegar
  • cups shredded Swiss or Gruyere cheese

Tools and equipment

    Instructions
     

    • Preheat oven to 350-degrees Fahrenheit.
    • Season the chicken thighs with 1 teaspoon salt and ¼ teaspoon pepper. Set aside.
    • Melt the butter in a large skillet over medium heat. Add the sliced onions and increase the heat to medium/high, stirring occasionally.
    • Add the remaining salt, pepper and 1 teaspoon dried thyme. Continue to cook and stir the onions until they develop a deep golden color (approximately 20 minutes).
    • Add the garlic, beef broth, and white wine. Continue to cook until the onions thicken and the liquid evaporates.
    • Spoon the onions evenly into a 9″ x 13″ casserole dish that has been sprayed with cooking spray.
    • Carefully wipe the skillet with paper towels.
    • Heat the oil in the skillet to medium and add the bread, sliced side down. Cook the bread in the skillet until crisp and browned, being careful to keep an eye on them as they can burn quickly.
    • Remove the browned bread from the skillet using tongs and place the browned bread, cut side up on the caramelized onions.
    • Place one chicken thigh on top of each slice of bread.
    • Bake in a preheated oven for 35 minutes.
    • Remove the casserole dish from the oven and brush each thigh with the balsamic vinegar.
    • Place the shredded cheese evenly over each chicken thigh and sprinkle the top of each thigh with the remaining dried thyme.
    • Return the chicken back into the oven for an additional 10 minutes to melt and brown the cheese.
    • To serve, make sure to spoon some of the onions along with each piece of bread and chicken thigh.
    • Enjoy!

    Nutrition

    Serving: 1servingCalories: 958kcalCarbohydrates: 91gProtein: 71gFat: 33gSaturated Fat: 12gTrans Fat: 1gCholesterol: 262mgSodium: 1872mgPotassium: 1041mgFiber: 5gSugar: 15gVitamin A: 497IUVitamin C: 11mgCalcium: 467mgIron: 8mg
    Keyword caramelized onion chicken, French onion chicken, French onion chicken thighs, smothered chicken
    Tried this recipe?Let us know how it was!

    Thank you so much for visiting me here today in my Kudos Kitchen!

    I sincerely hope you’ve enjoyed today’s delicious chicken thigh recipe for French Onion Chicken as much as I’ve enjoyed bringing it to you!

    Should you have any questions or comments regarding this recipe or anything else you’ve seen on my site, please don’t hesitate to reach out to me. It is always my distinct pleasure to get back with a reply just as soon as I possibly can!

    For more Kudos Kitchen recipe information, please follow me on my social medial channels (listed below), and don’t forget to TAG me @kudoskitchen with photos so I can view all your delicious recipe creations! It’s exciting for me when you share them, so don’t be shy!

    Instagram, Pinterest, Facebook, and YouTube

    Kudos Kitchen by Renee – BRINGING YOU EASY, ECONOMICAL, AND DELICIOUS DISHES TO FEED YOUR LOVED ONES!

    Until we eat again, I hope you have a delicious day!

    Kudos Kitchen by Renee Signature

    **Note – The post above includes affiliate links. As always, I truly thank you for your support!

    When I find a great product or service I like to share it with my readers. For additional information please view my privacy policy.

    Recipe Rating




    Erica Schwarz

    Thursday 22nd of April 2021

    I'd been wanting to make something like what my mom used to make, but with better ingredients (she used storebought soup - holy salt!). So I gave this recipe a try and it was a WIN. So tasty, easy to make, the directions were clear. Thanks!

    Renée

    Friday 23rd of April 2021

    LOL. Holy Salt! Yep, steer clear of the storebought soup! Glad you enjoyed this recipe. Thanks for the rating. Renee

    Lisalia

    Wednesday 21st of April 2021

    Yum. This was so delicious. An easy to assemble dinner that really has a wow factor! So impressive and so flavorful. It works perfect as a week night meal - but would be equally appropriate for inviting guests over or for a special occasion meal. WOW thanks! So so good.

    Renée

    Friday 23rd of April 2021

    This is definitely a company-worthy meal, Lisalia! Glad you enjoyed it. Take good care, Renee

    Aimee

    Wednesday 21st of April 2021

    Love this twist on French onion soup! This chicken is so moist, and flavorful. Definitely a new favorite!

    Renée

    Friday 23rd of April 2021

    Awesome, Aimee. Thanks so much!!

    Char

    Monday 23rd of December 2019

    Made the boneless pork chop recipe....delicious. I could never get boneless chops tender enough. This recipe did the trick. Can be made ahead then add the chops to the onion mixture and finish the recipe (simmer for 20 minutes).WOW.. what a company’s coming time saver.

    Renée

    Monday 23rd of December 2019

    I'm so happy you've enjoyed the French onion pork chops, Char! They're my absolute favorites! Thanks for the rating and the comment!! Renee

    Sarah Walker Caron (Sarah's Cucina Bella)

    Thursday 5th of May 2016

    That looks divine! I love French onion soup, and this interpretation of it combines all the best elements. YUM!