1kg/2 lb potatoes, peeled and sliced quite thinly50g/2 oz butter
2 tabs any vegetable oil
3 large onions, sliced thinly
15-16 anchovy fillets
salt and pepper
fine white breadcrumbs
150 ml/1/4 pint cream
150 ml/1/4 pint milk
Heat the oil and half the butter, add onions and cook gently until soft. Arrange a layer of potatoes on the bottom of a greased gratin (baking) dish, add a layer of onion and criss-cross with anchovies. Season with a little pepper and salt. Continue adding layers, finishing with a potato layer. Top with breadcrumbs and dot with other half of butter. Bring cream and milk to boil in a separate pot and pour down the sides of the potato mixture. Bake at 200ºC (400ºF) for 45 minutes to one hour, or until potatoes are tender.
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