Duke of Norfolk Soup.
(Potage à la Duc de Norfolk.)
Put into a stewpan four good sized onions with two ounces of butter and a bunch of herbs (thyme, parsley, and bayleaf), six or eight peppercorns, three sliced tomatoes, two fresh mushrooms, half a cod's head, and the bones from the smelts (see below), or any other white fish bones; fry all together for about twenty minutes, then cover the whole with cold water; add the juice of two lemons or two wineglasses of white wine, and bring it gently to the boil; skim the stock, and leave it on the side of the stove for twenty to thirty minutes; remove the fat, and clarify the stock with raw whites of eggs, allowing four or five whites to each quart of stock, and flavour with a glass of white wine if liked; when the stock boils let it simmer for about fifteen minutes, and drain off through a clean soup cloth; make it quite hot, and when about to serve, garnish it with cucumber cut in pea shapes with a pea cutter and cooked in cold water, with a little salt, till tender, which will take about fifteen minutes, and fillets of smelts prepared as below, little quenelles, and finely cut shreds of tarragon and lettuce cooked in cold water, with a little salt till tender, say for five minutes.