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Description
A rich and creamy casserole with layers of caramelized onions, potatoes, and cheese, baked to perfection.
Ingredients
- 4 large potatoes, thinly sliced
- 2 large onions, thinly sliced
- 2 tbsp butter
- 1 tbsp olive oil
- 1 cup heavy cream
- 1 cup shredded Gruyère cheese
- 1/2 tsp salt
- 1/4 tsp black pepper
- 1/4 tsp nutmeg
Instructions
- Preheat oven to 375°F (190°C).
- Heat butter and olive oil in a pan over medium heat. Add onions and cook until caramelized, about 15 minutes.
- Layer half the potatoes in a greased baking dish. Top with half the caramelized onions and half the cheese.
- Repeat with remaining potatoes, onions, and cheese.
- Pour heavy cream over the layers. Sprinkle with salt, pepper, and nutmeg.
- Bake for 45-50 minutes until golden and bubbly.
- Let rest for 10 minutes before serving.
Notes
- Use a mandoline for even potato slices.
- Substitute Gruyère with cheddar for a different flavor.
- Cover with foil if the top browns too quickly.
- Prep Time: 20 minutes
- Cook Time: 50 minutes
- Category: Side Dish
- Method: Baking
- Cuisine: French