Ingredients
Method
Preparation
- Preheat your oven to 350°F (175°C).
- Slice your potatoes thinly, ideally using a mandoline for even thickness.
- Soak the sliced potatoes in cold water for 5-10 minutes to soften evenly, then pat dry.
Layering
- Grease a baking dish with butter.
- Layer the potatoes in the dish, adding onion, garlic, cheese, and seasoning between layers.
Baking
- Pour the cream or milk over the layered potatoes.
- Cover the dish with foil and bake for about 45 minutes.
- Remove the foil and bake for an additional 15 minutes to crisp the top.
Final Steps
- Let the dish cool slightly; the sauce will thicken upon cooling.
Notes
This dish can be assembled ahead of time and refrigerated. If baking from cold, add 10-15 extra minutes. For gluten-free options, omit flour and use cornstarch to thicken if needed.