Ingredients: Chablis, mushrooms, leeks, a bunch of herbs, peppercorns,
Espagnole sauce, game gravy or stock, lemon.
Put into a stewpan two glasses of Chablis, two tablespoonsful of
mushroom trimmings, a leek cut up, a bunch of herbs, five peppercorns,
and boil till it is reduced to half. In another stewpan mix two glasses
of Espagnole (No. 1) or Velute sauce (No 2) and half a glass of game
gravy, boil for a few minutes then blend the contents of the two
stewpans, pass through a sieve, and add the juice of a lemon.