French Onion Skillet Chicken is a delightful dish that combines the rich flavors and comforting essence of traditional French onion soup with tender chicken, all cooked in a single skillet. Imagine succulent pieces of chicken bathed in a savory broth, layered with sweet, caramelized onions, and topped with gooey melted cheese.
Season the chicken breasts generously with salt and pepper on both sides. Allow to sit at room temperature for 15 minutes.
In a large skillet, heat 1 tablespoon of olive oil over medium-high heat until shimmering.
Add the chicken breasts to the skillet and cook for 5-7 minutes per side until golden brown and cooked through. Remove from skillet and set aside.
In the same skillet, add 2 tablespoons of butter and 1 tablespoon of olive oil. Once melted, add the sliced onions and sprinkle with sugar. Cook for 15-20 minutes until soft and caramelized.
Stir in the garlic powder and dried thyme and cook for an additional 1-2 minutes.
Pour in the beef broth and scrape up any browned bits from the pan. Let simmer for 2-3 minutes.
Return the chicken to the skillet and simmer for an additional 5 minutes, allowing the flavors to meld.
Top with shredded Gruyère cheese and cover until melted. Garnish with chopped parsley before serving.