Caramelized onions are the soul of this dish—get them right, and you’re halfway to perfection. Think of caramelizing onions as a slow art form. Sweet onions are your best choice, and when they’re gently sautéed in butter, they soften, turn translucent, and take on that golden-brown glow.

The magic happens when you add beef broth and balsamic vinegar. These deepen the flavor, lending savory umami and a subtle tang while coaxing the onions into a jammy consistency. Patience is key—about 10 minutes over medium heat will do.

Don’t forget the aromatics: garlic, black pepper, and thyme. They weave layers of flavor that elevate the natural sweetness of the onions. For extra flair, a touch of sugar or honey can intensify the caramelization, but tread lightly—too much tips the balance toward sweetness.

Master the onions, and you’ve mastered the dish. With this foundation, your French Onion Chicken Bake becomes a comforting centerpiece worthy of any table.

French Onion Chicken Bake

Ingredients

Instructions

1. Preheat & Prepare
   Heat oven to 400°F. Lightly coat a baking dish with cooking spray.
2. Sauté the Onions
   Melt butter in a large skillet over medium-high heat. Add onions and cook for about 5 minutes, stirring occasionally.
3. Infuse Flavors
   Reduce heat to medium. Add garlic, pepper, and thyme. Stir and cook for 1 minute.
4. Caramelize to Jammy Goodness
   Pour in beef broth and balsamic vinegar. Cook until onions are jam-like in texture, about 10 minutes.
5. Assemble the Dish
   Spread one-third of the caramelized onions in the baking dish. Place chicken breasts on top and season with salt.
6. Cheese It Up
   Cover chicken with the remaining onions. Sprinkle mozzarella and Parmesan generously over the top.
7. Bake to Perfection
   Bake for 30 minutes, or until chicken reaches an internal temperature of 165°F.