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Easy French Onion Chicken Bake

A close-up of a serving of creamy french onion chicken topped with crispy, caramelized fried onions.
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Make this French Onion Chicken Bake for a comforting dinner. It combines tender chicken with deeply caramelized onions and melted Gruyère cheese for a savory, satisfying meal.

Ingredients

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  • 4 boneless, skinless chicken breasts
  • 1 tablespoon olive oil
  • 3 large yellow onions, thinly sliced
  • 1 teaspoon salt, divided
  • 1/2 teaspoon black pepper, divided
  • 2 cloves garlic, minced
  • 1 tablespoon all-purpose flour
  • 1 cup beef broth
  • 1 tablespoon Worcestershire sauce
  • 1 teaspoon dried thyme
  • 1/2 cup dry white wine or extra broth (optional)
  • 1 cup shredded Gruyère cheese (or Provolone)
  • 1/4 cup crispy fried onions (for topping)

Instructions

  1. Preheat your oven to 400 degrees Fahrenheit. Lightly grease a 9×13 inch baking dish or an oven-safe skillet.
  2. Season the chicken breasts on both sides with half of the salt and pepper. Set aside.
  3. Heat the olive oil in a large skillet over medium heat. Add the sliced onions and cook slowly, stirring occasionally, for 20 to 25 minutes until they are deeply caramelized and sweet. This step builds the deep flavor.
  4. Add the minced garlic to the onions and cook for 1 minute until fragrant.
  5. Sprinkle the flour over the onions and stir to coat. Cook for 1 minute.
  6. Slowly whisk in the beef broth, Worcestershire sauce, dried thyme, and the remaining salt and pepper. If using wine, add it now. Bring the mixture to a simmer and cook until the sauce thickens slightly, about 3 to 5 minutes.
  7. Place the seasoned chicken breasts into the prepared baking dish or skillet. Pour the caramelized onion sauce evenly over the chicken.
  8. Bake for 20 minutes.
  9. Remove the dish from the oven. Top each chicken breast with an equal portion of the shredded Gruyère cheese.
  10. Return the dish to the oven and bake for another 5 to 10 minutes, or until the chicken is cooked through (internal temperature reaches 165 degrees Fahrenheit) and the cheese is melted and bubbly.
  11. Sprinkle the crispy fried onions over the melted cheese before serving.

Notes

  • For a low-carb option, serve this dish as is, or over steamed green beans instead of traditional sides.
  • If you do not have Gruyère cheese, Swiss or Provolone cheese works well as a substitute for that classic melted topping.
  • To speed up the onion caramelization, you can add a pinch of sugar, but this is not necessary if you cook them low and slow.

Nutrition

Find it online: https://juliameal.com/french-onion-chicken-bake-easy-dinner/