A rich and comforting Caramelized Onion Casserole made with sweet onions, cream, and cheese, topped with golden breadcrumbs.
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Calories: 360kcal
Equipment
- Large skillet
- Baking Dish
- knife
- Oven
Ingredients
- 4 large sweet onions, thinly sliced
- 0.25 cup butter
- 3 cloves garlic, minced
- 1 tsp fresh thyme (or 1/2 tsp dried)
- 1 cup heavy cream
- 1 cup Gruyère cheese, grated
- 0.5 cup Parmesan cheese, grated
- 0.5 cup breadcrumbs
- salt, to taste
- black pepper, to taste
Instructions
- Peel and thinly slice the onions.
- Melt butter in a large skillet and cook onions over medium heat for 20–25 minutes until soft and golden.
- Add garlic and thyme and cook for 1 minute more.
- Season with salt and black pepper and remove from heat.
- Preheat oven to 350°F and transfer onions to a greased baking dish. Stir in cream, Gruyère, and Parmesan.
- Sprinkle breadcrumbs evenly over the top.
- Bake uncovered for 25–30 minutes until bubbly and lightly golden. Rest before serving.
Notes
Caramelize onions slowly for the best flavor and sweetness.
Nutrition
Calories: 360kcal | Carbohydrates: 22g | Protein: 9g | Fat: 28g | Saturated Fat: 17g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 7g | Cholesterol: 85mg | Sodium: 420mg | Potassium: 320mg | Fiber: 2g | Sugar: 7g | Vitamin A: 15IU | Vitamin C: 10mg | Calcium: 25mg | Iron: 8mg