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French Onion Chicken

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French Onion Chicken is a one-skillet dinner featuring juicy seared chicken breasts, caramelized onions, and melted cheese in a savory broth sauce inspired by French onion soup. Rich, comforting, and full of deep flavor.

Ingredients

  • 4 boneless, skinless chicken breasts
  • Salt and pepper, to taste
  • 1/2 teaspoon garlic powder
  • 2 tablespoons olive oil or butter
  • 2 large yellow onions, thinly sliced
  • 2 cloves garlic, minced
  • 1 teaspoon fresh thyme or 1/2 teaspoon dried thyme
  • 1 tablespoon balsamic vinegar or Worcestershire sauce
  • 1 cup beef broth or stock
  • 1 cup shredded Gruyère, Swiss, or mozzarella cheese
  • Optional garnish: chopped parsley or fresh thyme sprigs

Instructions

  1. Season chicken breasts with salt, pepper, and garlic powder on both sides.
  2. Heat 1 tablespoon oil or butter in a large skillet over medium-high heat. Sear chicken for 4–5 minutes per side until golden brown. Remove and set aside.
  3. Reduce heat to medium. Add remaining oil or butter to the skillet. Add sliced onions and cook for 20–25 minutes, stirring often, until deeply caramelized.
  4. Add minced garlic, thyme, and balsamic vinegar or Worcestershire sauce. Stir and cook for 1 more minute.
  5. Pour in beef broth and bring to a simmer, scraping up any browned bits from the pan.
  6. Return chicken to the skillet, nestling it into the onions. Spoon some onions over each piece.
  7. Top each chicken breast with shredded cheese. Cover the skillet and cook for 8–10 minutes, until chicken is cooked through (165°F) and cheese is melted.
  8. Garnish with parsley or thyme if desired. Serve hot.

Notes

  • Gruyère is traditional, but Swiss, mozzarella, or provolone work too.
  • To deepen flavor, use beef bone broth or reduce the broth longer for a thicker sauce.
  • Sear chicken in batches if needed to avoid overcrowding the pan.
  • Use a broiler at the end to brown the cheese if desired.

Nutrition

Find it online: https://thefamilycooking.com/french-onion-chicken-3/