Instructions:
Preheat Oven: Set your oven to 375°F (190°C).
Caramelize Onions: Heat a large skillet over medium heat and cook the sliced onions until soft and golden brown, stirring occasionally. This process takes about 20–25 minutes.
Assemble: Transfer the caramelized onions to a baking dish and spread them evenly. Pour the beef broth over the onions to coat them well. Layer the shredded Gruyère cheese evenly on top, followed by the breadcrumbs.
Bake: Place the dish in the oven and bake for 20–25 minutes, or until the cheese is bubbling and the breadcrumbs are golden and crisp.
Serve: Let the dish cool slightly before serving.
Variations & Tips:
Vegetarian Twist: Swap out the beef broth for vegetable broth.
Extra Flavor: Add a layer of cooked mushrooms for a rich, earthy touch.
Cheese Alternatives: If Gruyère isn’t available, use Swiss cheese or mozzarella.
Crunchy Texture: Mix chopped nuts (like walnuts or pecans) into the breadcrumbs for added crunch.
Spicy Kick: Sprinkle a pinch of red pepper flakes on the onions while caramelizing.
This dish is simple yet packed with comfort food vibes—great for cozy evenings or as a side dish for gatherings. Let me know if you’d like more tips or variations!