Ingredients
Equipment
Method
- Preheat your oven to 180°C (350°F). Grease a 9x13 inch baking dish with butter or cooking spray.
- Peel the potatoes and slice them into thin rounds, about 1/8 inch thick. Try to keep the slices uniform for even cooking.
- In a medium saucepan over medium heat, melt the butter. Whisk in the flour and cook for about 1 minute to form a roux.
- Gradually whisk in the milk until smooth and slightly thickened, about 3-5 minutes.
- Remove the saucepan from heat. Stir in the cheddar cheese, mozzarella, garlic powder, salt, and black pepper until the cheese is melted and the sauce is smooth.
- Layer half of the sliced potatoes in the prepared baking dish. Pour half of the cheese sauce evenly over the potatoes.
- Add the remaining potato slices as a second layer. Pour the rest of the cheese sauce over the potatoes, making sure everything gets coated.
- Cover the baking dish tightly with foil and bake for 40 minutes.
- Remove the foil and continue baking for another 20 minutes, or until the top is golden and the potatoes are tender when pierced with a fork.
- Allow to cool for 10 minutes before serving for easier slicing.
Notes
For extra flavor, sprinkle a little paprika or additional shredded cheese on top before baking uncovered.
You can substitute half of the cheddar with Gruyère for a more complex flavor.
Leftovers keep well in the refrigerator for up to 3 days; reheat in the oven for best results.
