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Instructions
Lightly butter a shallow gratin dish. Put the single cream and double creams into a bowl, add the garlic, and stir to mix.
Preheat the oven to 160℃/140℃fan/Gas 3/330℉.
Prepare your potatoes by peeling them and slicing them thinly, preferably with a mandoline or food processor.
After slicing the potatoes, arrange a layer at the bottom of your buttered baking dish. It’s important not to overlap the potato slices too much, as this could lead to uneven cooking.
Season with salt and pepper. Pour a little of the cream mixture over the potatoes, then sprinkle the grated cheese. Continue layering the potatoes, cream, and cheese, add salt and pepper, and then finish with a layer of cheese.
Bake for 1½hours or until the potatoes are tender and the topping is golden brown.
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