A guide to modern cookery

shell them; trim their tails, and keep them in the cool in a small bowl. Pound their shells as finely as possible with one-quarter lb. of fresh butter, and put the resulting purée in a saucepan, together with one-half pint of boiling velouté containing four or five leaves of gelatine, and the cooking-liquor of the crayfish passed through a fine strainer. Set to boil for a few minutes, that the remains may exude all their flavour; rub through tammy over a basin lying on ice, and whisk the preparation in order to accelerate its cooling. As soon as it begins to thicken, add one pint of half-whipped cream to it. Then pour the whole into a silver or porcelain timbale, taking care that the utensil be not more than three-quarters full. When the _mousse_ has set, decorate the surface with the reserved crayfish tails, to which are added, as a finish, bits of truffle and chervil leaves. Cover the decoration with a thin coating of easily-melting and amber-coloured fish jelly, and put the timbale on ice. When about to serve, incrust it in a block of carved ice, or place it on a silver dish with broken ice all round. 977—MOUSSE D’ÉCREVISSES CARDINAL For ten people cook the crayfish as explained in No. 976, but take forty instead of thirty. Shell the tails; trim them and cut them into dice. Prepare the _mousse_ in the same way, but use twice as much red butter. Garnish twelve carapaces after the same manner, and decorate each with a slice of truffle. _Clothe_ a dome- or Charlotte-mould somewhat thickly with jelly; garnish its bottom and sides with crayfish tails, previously dipped in half-melted jelly, and arranged in superposed rows; and place the crayfish so that the tails of the first row lie to the left, those of the second row to the right, and so on. As often as possible, do this work before preparing the _mousse_, in order that the latter may be put into the mould as soon as ready. When about to fill the mould, add twenty fine slices of