Ingredients
Method
Preparation
- Preheat your oven to 350°F (175°C).
- Grease a baking dish with butter to prevent sticking.
- In a saucepan over medium heat, melt the butter and sauté the chopped onions until soft and translucent, about 3-4 minutes.
- Stir in the flour and cook for an additional minute until it becomes a paste.
- Gradually whisk in the milk, stirring until the mixture thickens and begins to bubble, about 5-7 minutes.
- Remove from heat and stir in 3/4 of the shredded cheddar cheese until melted. Season with salt and pepper.
Assembly and Baking
- In your greased baking dish, add a layer of sliced potatoes at the bottom and pour a portion of the cheese sauce over the potatoes.
- Repeat the layers until you run out of potatoes, finishing with the cheese sauce on top.
- Sprinkle the remaining cheddar cheese over the top.
- Cover the dish with aluminum foil and bake for 30 minutes. Remove the foil and bake for another 15-20 minutes until the potatoes are tender and the top is bubbly and golden.
- Allow the dish to cool for a few minutes before serving.
Notes
For a dairy-free version, use almond milk and a suitable cheese substitute. Ensure even cooking by slicing potatoes uniformly. If the cheese sauce is too runny, add more flour to thicken.
