French Onion Soup Chicken Bake Recipe

5 from 1 vote

This French Onion Soup Chicken combines two favorites into one incredible dish that's ready in about 45 minutes.

Prep Time10

Cook Time45

Total Time55

Course: Main Dishes

Cuisine: American

Servings:

Calories: 547kcal

Heat a large oven-safe skillet over medium-high heat and add 1 tablespoon oil. Sear the chicken breasts for 2-3 minutes per side until nicely browned. Transfer to a plate and cover with foil.
2 tablespoons avocado oil, 4 medium chicken breasts
Reduce to medium heat and add the remaining oil if needed. Add the sliced onions and cook for 15-20 minutes, stirring often, until they're soft and caramelized to a golden brown.
3 medium sweet onions
Add the minced garlic and fresh thyme to the caramelized onions. Cook for another 1-2 minutes until fragrant.
3-5 garlic cloves, 2 teaspoons fresh thyme
Pour in the beef broth and balsamic vinegar, then season with salt and pepper. Stir to combine and scrape up any flavorful bits from the bottom of the pan.
1 cup beef broth, 1 tablespoon balsamic vinegar, Salt and pepper
Return the chicken to the skillet, spoon some sauce over each piece, and simmer uncovered for 15-20 minutes. Flip the chicken halfway through for even cooking and cook until the internal temperature reaches 165°F.
Top the chicken with the caramelized onion sauce and sprinkle with shredded gruyere. Broil for a few minutes until the cheese is melted and bubbly.
1 cup shredded Gruyere cheese
Garnish with fresh thyme leaves if desired and serve hot.
Fresh thyme

Even-sized chicken - Use chicken breasts that are similar in size to ensure even cooking. For larger pieces, slice horizontally to create thinner cutlets.
Patience with onions - The key to perfect caramelized onions is cooking them slowly. Don't rush this step—those 15-20 minutes create the sweet flavor foundation of this dish.
Cheese grating - Shred your cheese from a block rather than using pre-packaged shredded cheese. Pre-shredded varieties contain anti-caking agents that can prevent proper melting.
Stovetop alternative - No broiler or oven-safe skillet? Simply cover the skillet with a lid after adding the cheese and let it melt on the stovetop for about 5 minutes.
Temperature check - Use a meat thermometer to ensure chicken reaches 165°F for food safety without overcooking.