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French Onion Chicken

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French Onion Chicken is a savory, one-skillet meal featuring juicy chicken breasts smothered in caramelized onions, a rich broth-based sauce, and melted Gruyère cheese. It’s a comforting and elegant dish inspired by classic French onion soup.

Ingredients

  • 4 boneless, skinless chicken breasts
  • Salt and black pepper to taste
  • 2 tbsp olive oil or butter
  • 3 large yellow onions, thinly sliced
  • 2 cloves garlic, minced
  • 1 cup beef broth or chicken broth
  • 1 tbsp balsamic vinegar or Worcestershire sauce
  • 1 tsp dried thyme or 1 tbsp fresh thyme
  • 1 tbsp all-purpose flour or 1 tsp cornstarch (optional, for thickening)
  • 1 cup shredded Gruyère or Swiss cheese
  • Optional: chopped fresh parsley for garnish

Instructions

  1. Preheat oven to 400°F (200°C).
  2. Season chicken breasts with salt and pepper.
  3. Heat oil or butter in a large oven-safe skillet over medium-high heat. Sear chicken for 4–5 minutes per side until golden brown. Remove and set aside.
  4. Reduce heat to medium. Add sliced onions and cook, stirring occasionally, until deeply caramelized (20–25 minutes).
  5. Add minced garlic and cook for 1 minute.
  6. Stir in balsamic vinegar (or Worcestershire sauce) and scrape up browned bits.
  7. Pour in broth and add thyme. Simmer for 5 minutes. If desired, whisk in flour or cornstarch slurry to thicken.
  8. Return chicken to skillet, nestling it into the onions.
  9. Top each chicken breast with shredded or sliced cheese.
  10. Transfer skillet to oven and bake for 10–12 minutes, or until cheese is melted and chicken reaches 165°F internal temperature.
  11. Garnish with fresh parsley and serve hot.

Notes

  • Use boneless chicken thighs for extra juiciness.
  • Add mushrooms with the onions for added flavor.
  • Substitute Gruyère with provolone, mozzarella, or white cheddar.
  • For a creamy twist, stir in a splash of heavy cream to the sauce before baking.
  • Serve with mashed potatoes, rice, or crusty bread to soak up the sauce.

Nutrition

Find it online: https://thefamilycooking.com/french-onion-chicken/