Caramelized Onion Casserole
Looking for a comforting, crowd-pleasing dish that works for both family dinners and special occasions? This Sweet Onion Casserole combines the natural sweetness of onions with a rich, creamy, cheesy mixture that’s sure to delight everyone at the table. Follow this guide for a simple, delicious result.
Ingredients:
| Ingredient | Quantity |
|---|---|
| Sweet onions | 4 large |
| Butter | ¼ cup |
| Garlic cloves, minced | 3 |
| Thyme leaves | 1 tsp |
| Heavy cream | 1 cup |
| Gruyere cheese, grated | 1 cup |
| Parmesan cheese, grated | ½ cup |
| Breadcrumbs | ½ cup |
| Salt | To taste |
| Black pepper | To taste |
Instructions:
- Prepare the Onions
- Peel and thinly slice the sweet onions. Set aside.
- Cook the Onions
- In a large skillet, melt butter over medium heat. Add minced garlic and cook until fragrant.
- Add the sliced onions and sauté for 15–20 minutes, stirring occasionally, until soft and golden.
- Add Herbs and Cream
- Sprinkle thyme over the onions and mix well.
- Pour in the heavy cream and simmer gently until slightly thickened.
- Incorporate Cheese
- Stir in the Gruyere and Parmesan until fully melted and creamy.
- Season
- Taste and adjust with salt and black pepper, keeping in mind the cheeses already add saltiness.
- Assemble the Casserole
- Transfer the onion mixture into a greased baking dish.
- Evenly sprinkle breadcrumbs over the top for a golden, crunchy finish.
- Bake
- Preheat oven to 375°F (190°C). Bake for 20–25 minutes, until bubbly and lightly browned on top.
- Serve
- Let the casserole cool slightly before serving generous portions. Enjoy the creamy, savory flavors!
Tips for Best Results:
- Use naturally sweet onions like Vidalia or Walla Walla for optimal flavor.
- Fresh thyme adds extra aroma and depth.
- Experiment with other cheeses—cheddar or Fontina work well for added richness.
