Peel and slice your potatoes very thinly into a pie-dish; between each
layer of potatoes put a little chopped onion, and sprinkle a little
pepper and salt; put in a little water, and cut about two ounces of
fresh butter into bits, and lay them on the top; cover it close with
paste. The yolks of four eggs may be added; and when baked, a
tablespoonful of good mushroom ketchup poured in through a funnel.
Another method is to put between the layers small bits of mutton,
beef, or pork. In Cornwall, turnips are added. This constitutes (on
the Cornish method) a cheap and satisfactory dish for families.