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Crock Pot French Onion Chicken Recipe

4.6 from 66 reviews

Crock Pot French Onion Chicken is a comforting and hearty slow-cooked dish featuring tender chicken thighs simmered in rich French onion soup and aromatic herbs, finished with a bubbly Gruyère cheese topping. Perfect for cozy dinners, it delivers deep flavors and satisfying textures that bring warmth and family togetherness to the table.

Ingredients

Scale

For the Chicken

  • 2 pounds Chicken Thighs (boneless, skinless)
  • 1 teaspoon Kosher Salt
  • 1 teaspoon Black Pepper
  • 1 teaspoon Onion Powder
  • 1 teaspoon Garlic Powder
  • 1 tablespoon Poultry Seasoning

For the Soup Base

  • 1 can Condensed French Onion Soup
  • 1 tablespoon Worcestershire Sauce
  • 2 cups Beef Broth

For the Aromatics

  • 2 medium Sweet Onions, sliced (substitute yellow onions if needed)
  • 3 cloves Garlic, diced
  • 2 Bay Leaves
  • 1 teaspoon Fresh Thyme (or dried thyme, adjusted accordingly)

For the Finishing Touch

  • 2 tablespoons Salted Butter, sliced
  • 1 cup Gruyère Cheese (substitute Swiss or mozzarella if preferred)

Instructions

  1. Prepare the Chicken: Dry and generously season the chicken thighs with kosher salt, black pepper, onion powder, garlic powder, and poultry seasoning to build a flavorful base for the dish.
  2. Sear the Chicken: Heat a skillet over medium-high heat and sear the chicken thighs for about 5 minutes on each side until they develop a golden-brown crust. This locks in juices and adds depth of flavor. Transfer the seared chicken to the crockpot.
  3. Deglaze the Skillet: Pour the condensed French onion soup, Worcestershire sauce, and beef broth into the hot skillet. Scrape up any browned bits stuck to the bottom to incorporate all the flavors. Pour this savory mixture over the chicken in the crockpot.
  4. Add the Aromatics: Layer the sliced sweet onions on top of the chicken, then sprinkle the diced garlic, add the bay leaves, fresh thyme, and lay slices of salted butter on top to create a rich and aromatic blend.
  5. Slow Cook: Cover the crockpot and cook on low for 6 hours or high for 4 hours until the chicken is tender and easily pulls apart, allowing the flavors to meld beautifully.
  6. Finish with Cheese: Carefully remove the chicken from the crockpot to a serving dish and top with Gruyère cheese. Broil in the oven for 3-5 minutes until the cheese is melted, bubbly, and browned to a perfect golden finish.
  7. Serve and Enjoy: Serve the Crock Pot French Onion Chicken hot with crusty bread, garlic mashed potatoes, or steamed vegetables for a complete and hearty meal. Optionally, drizzle with additional fresh thyme or parsley for a fresh herbal note.

Notes

  • Optional: Drizzle with additional thyme or parsley for enhanced freshness.
  • Adjust kosher salt and pepper to taste; taste the broth before adding extra seasoning.
  • For a thicker sauce, add a cornstarch slurry (1 tbsp cornstarch mixed with 2 tbsp cold water) during the last hour of cooking.
  • Use boneless, skinless chicken thighs for optimal tenderness and juiciness.
  • To make gluten-free, use gluten-free Worcestershire sauce and ensure broth and sides are gluten-free.
  • Leftovers keep well refrigerated for 3-4 days and freeze up to 3 months.
  • Reheat gently adding broth if sauce seems dry.
  • Do not feed onions or garlic to pets; plain chicken and broth are safer options for dogs.

Keywords: Crock Pot chicken, French onion chicken, slow cooker recipe, comfort food, easy chicken dinner, French onion soup chicken, slow cooker chicken thighs