38—Genevoise Sauce

Heat two oz. of butter in a stewpan; insert one lb. of Mirepoix (No. 228, Mirepoix) without bacon. Slightly brown, add two lbs. of head of salmon and remains or bones of fish, and stew with lid on for twenty minutes. Let the stewpan lean slightly to one side, so that the butter may be drained; moisten with one bottle of excellent red wine; reduce the latter by half; add one pint of Lenten Espagnole, and allow to cook gently for half an hour.

Rub the sauce through a sieve, pressing it so as to extract all the essence. Let it rest awhile; carefully remove the fat which has risen to the surface, and add one liqueur-glass of burnt brandy, one-half pint of red wine, and as much fish fumet. Boil again, then move stewpan to the side of fire to despumate for one and one-half hours. Frequently remove what the ebullition causes to rise to the surface, this second period of cooking being only to ensure the purification of the sauce. If the ebullition has been well effected, the sauce should reach the proper degree of reduction and despumation at the same moment of time. It is then strained through muslin or tammy, and it is finished at the last minute with a few drops of anchovy essence and four oz. of butter per quart of sauce.

N.B.—The Genevoise Sauce, like all red-wine sauces, may be served without being buttered. It is thus clearer and more sightly in colour, but the addition of butter in small quantities makes it mellower and more palatable.