Instructions

1. Preheat oven to 200°C/400°F/gas mark 6. Halve the garlic clove and rub all over the base and sides of a large shallow casserole dish.
2. Slice the potatoes very thinly and arrange a third of them in the dish. Sprinkle with a little of the parmesan cheese and season with salt and pepper.
3. Pour over some of the stock to prevent the potatoes from discolouring.
4. Continue layering the potatoes and cheese as before, then pour over the rest of the stock.
5. Sprinkle with the grated nutmeg.
6. Bake in a preheated oven for about 1 1/4 hours or until the potatoes are tender and top is well browned.