Caramelized Onion Casserole
Looking for a flavorful and crowd-pleasing dish that’s perfect for family dinners or special occasions? This Sweet Onion Casserole combines the natural sweetness of onions with a creamy, cheesy blend that everyone will love. Whether you’re hosting guests or craving a comforting meal, this casserole is a delicious choice. In this guide, we’ll walk you through the steps to make this savory dish, including a clear table of ingredients, helpful tips, and expert advice for best results.
📝 Sweet Onion Casserole Recipe
Ingredients:
| Ingredient | Quantity |
|---|---|
| Sweet onions | 4 large |
| Butter | 1/4 cup |
| Garlic cloves | 3 minced |
| Thyme leaves | 1 tsp |
| Heavy cream | 1 cup |
| Gruyere cheese | 1 cup, grated |
| Parmesan cheese | 1/2 cup, grated |
| Breadcrumbs | 1/2 cup |
| Salt | To taste |
| Black pepper | To taste |
Instructions:
- Prepare the Onions: Peel and thinly slice the sweet onions. Set aside.
- Sauté the Onions: In a large skillet, melt the butter over medium heat. Add minced garlic and cook until fragrant. Add sliced onions and sauté until soft and golden, about 15–20 minutes, stirring occasionally.
- Add Flavor: Sprinkle thyme over the onions and mix well to allow the flavors to meld.
- Make it Creamy: Pour in the heavy cream and simmer gently for a few minutes until slightly thickened.
- Add Cheese: Stir in the grated Gruyere and Parmesan cheeses until melted and creamy.
- Season: Taste and season with salt and black pepper, keeping in mind the cheeses already add some saltiness.
- Assemble Casserole: Transfer the onion mixture into a greased baking dish. Sprinkle breadcrumbs evenly on top for a crispy finish.
- Bake: Preheat oven to 375°F (190°C) and bake for 20–25 minutes, until golden brown and bubbly.
- Serve: Let cool slightly, then serve generous portions and enjoy the creamy, savory goodness.
Tips for Best Results:
- Use naturally sweet onions like Vidalia or Walla Walla for optimal flavor.
- Fresh thyme enhances the dish’s aroma and taste.
- Feel free to experiment with cheeses, such as adding cheddar for extra richness.
