French Onion Chicken

French Onion Chicken is a hardy protein- rich version of French Onion Soup. It’s a great comfort food for weekends when you have a little more time to spend in the kitchen (caramelized onions – mmmmm!)

chicken topped with French Onion soup, cheese, chopped parsley, and croutons; parsley and an onion on cutting board in background

We have so many tasty flavorful chicken recipes that people love to make for busy weeknights such as our Chicken Enchilada Casserole or Slow Cooker Chicken Thighs. This chicken dish is one you might want to keep for the weekend since it requires more hands-on time, but it is well worth the effort.

French Onion Chicken is made with chicken breast and caramelized onions topped with melty gooey Gruyere cheese, crunchy croutons, and freshly chopped parsley. It’s the kind of dish that makes you come back for “just one more bite.” 

What kind of onions should you use?

The most common onions used in many recipes, including this recipe, are yellow onions. They have the perfect flavor for casseroles, soups, and stews. You can also use Vidalia onions, which I used in this recipe. They are a varietal in the sweet onion family. However, yellow or sweet onions of any variety will give the dish a great flavor.

How do you caramelize onions?

Caramelization cooking of onions takes time, but trust me, it is worth it. It adds an extra layer of flavor.

First, you’ll need to heat oil on the skillet, then add sliced onions. Cook the onion slices for a few minutes, stirring often but not all the time. We want the onion to become a little brown, but not burnt.

To caramelize onions you need to cook them slowly for about 30 minutes. Don’t rush! Onions need time to cook properly to caramelize those sugars. You can check out our article on how to caramelize onions for more tips to the perfect caramelized batch of onions.

Tips For Making This Recipe

After the onions are caramelized, you’ll toss cubed chicken breast in flour mixture and cook them for about 6-8 minutes until golden.

Then add beef broth and caramelized onions back to the skillet and cook until the sauce is reduced. Top it with Gruyere cheese and heat until melted and top with croutons just before serving.

How should you serve this dish?

French Onion Chicken can be served with rice or egg noodles or another grain such as cooked buckwheat, farro, or quinoa. 


French Onion Chicken

frying pan with pieces of chicken and croutons in french onion soup topped with melted cheese and fresh parsley; plum colored clothto right of pan and cutting board in background with fresh parsley and onion

French Onion Chicken is a hardy protein- rich version of French Onion Soup. It’s a great comfort food for weekends when you have a little more time to spend in the kitchen (caramelized onions – mmmmm!)

  • Author: Ilona Orzechowska
  • Prep Time: 20 minutes
  • Cook Time: 55 minutes
  • Total Time: 1 hour 15 minutes
  • Yield: 4 servings


  • 2-3 large onions, sliced (about 5 cups)
  • 5 Tbsp. oil, divided
  • 1 Tbsp. water
  • 1/4 tsp. salt, divided
  • 1 lb. boneless skinless chicken breast, cut in 1 inch cubes
  • 1/4 cup flour
  • 1/4 tsp. garlic powder
  • 1 and 1/2 cups beef broth
  • 1 and 1/4 cups gruyere cheese
  • 1/2 cup store-bought croutons


  1. Heat 3 tablespoons of oil on skillet. Add sliced onion and cook for 20 minutes on low-medium heat, stirring often.
  2. Add water and 1/8 teaspoon of salt to onions. Sauté for an additional 10 minutes, stirring often.
  3. Remove onion from the skillet and set aside.
  4. Add the remaining 2 tablespoons of oil to the same skillet and heat.
  5. In a medium bowl combine flour, garlic powder, and 1/8 teaspoon of salt. Toss the chicken in the seasoned flour.
  6. Add chicken to the skillet and cook over medium-high heat on each side for about 6-8 minutes until golden.
  7. Add beef broth and caramelized onions. Cook uncovered for 10-15 minutes until the sauce is reduced.
  8. Add gruyere cheese. Cover and cook for 2 minutes until cheese is melted.
  9. Top with croutons and serve immediately for best results.

French Onion Chicken
French Onion Chicken

Ilona Orzechowska

Ilona blogs at Ilona’s Passion where she focuses on sweet and savory party recipes. She believes in making recipes from scratch and not very sweet desserts. She likes to experiment with flavors while cooking in her Canadian kitchen. She has lived in three countries and loves to explore the world with her two boys and a husband. While not cooking or traveling she designs printable invitations and party decorations.