Ingredients:
4 boneless, skinless chicken breasts
2 tablespoons olive oil
2 large onions, thinly sliced
2 cloves garlic, minced
1 tablespoon all-purpose flour
1 cup beef or chicken broth
3 cup shredded Gruyere cheese (or Swiss cheese)
1/2 cup shredded Parmesan cheese
Salt and pepper, to taste
Fresh thyme leaves (optional, for garnish
Instructions:
Preheat Oven: Preheat your oven to 370°F (180°C).
Prepare Chicken: Season the chicken breasts with salt and pepper on both sides.
Sear Chicken: In a large oven-safe skillet, heat olive oil over medium-high heat. Sear the chicken breasts for about 4-5 minutes on each side, or until golden brown. Remove the chicken from the skillet and set aside.
Cook Onions: In the same skillet, add more olive oil if needed. Add the sliced onions and cook over medium-low heat, stirring occasionally, until they are caramelized and golden brown, about 15-20 minutes. Add minced garlic during the last couple of minutes of cooking the onions.
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