French Onion Chicken Bake
Juicy chicken, jammy onions, and melty cheese every time. Simple steps, no guesswork, and one secret ingredient for bold flavor.
Servings: 4
Calories: 370kcal
Ingredients
- 2 tablespoons salted butter
- 1 tablespoon olive oil
- 2 large yellow onions thinly sliced
- 1 1/2 teaspoons minced garlic
- 4 boneless skinless chicken breasts OR 6 boneless chicken thighs 1.5 pounds
- 1 teaspoon salt
- ½ teaspoon black pepper
- 1 cup beef stock or beef broth
- 1 tablespoon Worcestershire sauce
- 1 teaspoon balsamic vinegar
- ½ teaspoon dried thyme
- 4 slices sliced Gruyere cheese or Swiss or Havarti cheese
- Optional garnish: fresh thyme or parsley
Instructions
- Preheat the oven to 375°F. Heat butter and olive oil in a large oven-safe skillet over medium heat. 2 tablespoons salted butter, 1 tablespoon olive oil
- Add the sliced onions and cook for 12–15 minutes, stirring occasionally, until they become deeply golden and soft. The onions should look jammy and caramelized. 2 large yellow onions
- Stir in the garlic and cook for about 30 seconds, just until fragrant. 1 1/2 teaspoons minced garlic
- Push the onions to the sides of the skillet. Season the chicken with salt and pepper and place it in the center of the pan. Cook the chicken for 3–4 minutes per side to lightly brown it. 4 boneless skinless chicken breasts OR 6 boneless chicken thighs, 1 teaspoon salt, ½ teaspoon black pepper
- Pour in the beef stock, Worcestershire sauce, balsamic vinegar, and thyme. Stir the onions into the broth around the chicken. 1 cup beef stock, 1 tablespoon Worcestershire sauce, 1 teaspoon balsamic vinegar, ½ teaspoon dried thyme
- Transfer the skillet to the oven and bake for 15–20 minutes, or until the chicken reaches 165°F internally.
- Remove the skillet from the oven and sprinkle the Gruyère cheese over the chicken and onions.4 slices sliced Gruyere cheese
- Return the skillet to the oven for 3–5 minutes, until the cheese is melted and bubbly. Garnish with fresh thyme if desired and serve warm. Optional garnish: fresh thyme or parsley
Notes
Refrigerate leftovers in an airtight container for up to 3 days. Reheat gently with a splash of broth to keep it from drying out.
Refer to the article above for more tips and tricks.
The calories shown are based on the recipe serving 4, with 1 serving being 1/4 of the chicken and onions. Since different brands of ingredients have different nutritional information, the calories shown are just an estimate. **We are not dietitians and recommend you seek a nutritionist for exact nutritional information. **
Nutrition
Calories: 370kcal | Carbohydrates: 9g | Protein: 35g | Fat: 21g | Saturated Fat: 10g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 8g | Trans Fat: 0.2g | Cholesterol: 118mg | Sodium: 1135mg | Potassium: 707mg | Fiber: 1g | Sugar: 4g | Vitamin A: 485IU | Vitamin C: 8mg | Calcium: 323mg | Iron: 1mg
