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French Onion Chicken Thighs

French Onion Chicken Thighs

Delicious French Onion Chicken Thighs cooked with caramelized onions and topped with melted Swiss cheese, perfect for a comforting meal.
Prep Time 10 minutes
Cook Time 55 minutes
Total Time 1 hour 5 minutes
Course main dish
Cuisine French
Servings 6 thighs
Calories 327 kcal

Equipment

  • large deep skillet

Ingredients
  

Cooking Base

  • 3 tablespoons butter
  • 1.5 tablespoons olive oil
  • 3 large yellow onions or 5–6 small, thinly sliced
  • 1.5 tablespoons balsamic vinegar

Chicken

  • 6 pieces boneless, skinless chicken thighs
  • 1.5 teaspoons garlic powder
  • 1.5 teaspoons dried thyme
  • Salt and pepper to taste

Sauce

  • 1 tablespoon all-purpose flour
  • 1.25 cups beef broth

Toppings

  • 6 slices Swiss cheese 1 per chicken thigh
  • Fresh parsley chopped, optional, for garnish

Instructions
 

Cooking Instructions

  • Heat 3 tablespoons butter and 1½ tablespoons olive oil in a large, deep skillet over medium heat.
  • Add the sliced onions and a pinch of salt. Cook, stirring occasionally, for 5 minutes.
  • Lower the heat to medium-low and continue cooking for 35–40 minutes, stirring occasionally, until the onions are golden brown and caramelized.
  • Stir in the 1½ tablespoons balsamic vinegar and cook for another 2 minutes. Remove the onions from the skillet and set aside.
  • In the same skillet, increase heat to medium-high and add a little more oil if needed (about 1 teaspoon at a time).
  • Season the chicken thighs with 1½ teaspoons garlic powder, 1½ teaspoons dried thyme, salt and pepper.
  • Sear the chicken for 2–3 minutes per side until golden brown but not fully cooked. Remove and set aside.
  • Reduce heat to medium and sprinkle 1 tablespoon all-purpose flour into the skillet, stirring for 1 minute.
  • Slowly whisk in 1¼ cups beef broth, stirring constantly to prevent lumps. Simmer for 1–2 minutes until the broth slightly thickens.
  • Return the caramelized onions to the skillet and spread them evenly in the sauce.
  • Nestle the seared chicken thighs into the onions and broth. Cover and let simmer on medium-low heat for 15 minutes, or until the chicken reaches an internal temperature of 165 F (74 C).
  • Once the chicken is fully cooked, place 1 slice of Swiss cheese on top of each piece. Cover the skillet again and let it cook for 2–3 more minutes, until the cheese is melted and gooey.
  • Garnish with fresh parsley, if desired. Serve with garlic mashed potatoes, rice, or crusty bread.

Notes

Yellow onions work best, but sweet onions will add an extra depth of flavor. Boneless, skinless thighs work best for this recipe. Gruyère or Provolone can be used as an alternative.

Nutrition

Serving: 1thighCalories: 327kcalCarbohydrates: 10gProtein: 28gFat: 19gSaturated Fat: 8gPolyunsaturated Fat: 2gMonounsaturated Fat: 7gTrans Fat: 0.3gCholesterol: 138mgSodium: 368mgPotassium: 444mgFiber: 1gSugar: 4gVitamin A: 354IUVitamin C: 6mgCalcium: 190mgIron: 2mg
Keyword cheesy, chicken, comfort food, French onion, onion, thighs
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