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+ servings
cast iron skillet French onion chicken recipe with crusty bread
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5 from 12 votes

French Onion Chicken

French onion chicken is reminiscent of French onion soup, only that pan-seared chicken is smothered and cooked in rich glorious sauce. This is one-pan/skillet chicken recipe perfect for busy weekdays or lazy weekends.
Prep Time5 mins
Cook Time25 mins
Total Time25 mins
Course: Main Course
Cuisine: French
Servings: 4 servings
Calories: 356kcal


  • 2 chicken thighs
  • 5 white onions
  • 1 tablespoon butter
  • 2 tablespoon olive oil
  • 4 cloves garlic
  • 1 teaspoon thyme
  • 1 ½ cups chicken stock
  • teaspoon flour
  • Salt to taste
  • 1 ½ teaspoon pepper powder
  • 1 teaspoon vinegar
  • 1 teaspoon Dijon mustard
  • ¼ cup Gruyere cheese (or Provolone, Swiss, gouda, or masdaam cheese)


  • Clean and wash the chicken thighs well. Cut them into 2 pieces. I used chicken without skin.
  • Add salt, pepper powder to the chicken pieces and mix well. Marinate it for about 30 minutes inside fridge.
  • In a cast iron pan add olive. Add crushed garlic and sauté until it turns brown. Now add the marinated chicken pieces. Roast it until it turns brown on both sides. Remove from the pan and set it aside.
  • Now add butter and let it melt. Add thin sliced onions to the pan and cook on low flame until the onions caramelize. It would take some time to caramelize the onions. Be patient.
  • Once the onions are caramelized, add thyme and sauté for a minute.
  • Add flour, whisk well. Make sure no lumps are formed.
  • Add chicken stock, continue to whisk and cook until thickened.
  • Add the roasted chicken into the pan, cook for 5 to 7 minutes.
  • Finally add vinegar and Dijon mustard mix well and cook for 3 minutes.
  • Now add grated Gruyere cheese on top of the chicken, broil it for 2 to 3 minutes until cheese melts and bubbles up.
  • Serve immediately with French bread.


I could not find any of these gourmet cheese any where locally, I simply used my regular cheese in the recipe. The cheese when melted actually bled into the sauce and got blended with it.
It's not a problem really, because the sauce has rich taste from melted cheese and was totally delicious.
To experience the traditional French onion chicken taste, do add Gruyere cheese to give that bubbly, cheesy texture.


Calories: 356kcal | Carbohydrates: 18g | Protein: 16g | Fat: 24g | Saturated Fat: 7g | Cholesterol: 80mg | Sodium: 250mg | Potassium: 450mg | Fiber: 2g | Sugar: 7g | Vitamin A: 550IU | Vitamin C: 12.5mg | Calcium: 128mg | Iron: 1.1mg