7. ALLEMANDE SAUCE.
Reduce the quantity of white Velouté sauce intended for the Alle-
mande, over a brisk stove-fire, adding a little essence of mushrooms
or some mushroom trimmings; when the sauce is sufficiently reduced,
take it off the stove, and incorporate with it a leason* of yolks of
eggs (in the proportion of four yolks to a pint), a little nutmeg,
cream, a pat of butter, and a little lemon-juice; set the leason in
the sauce, by stirring it over the fire until it simmers; it must then
be quickly stirred to keep the sauce from boiling, as, in that case,
the yolks of eggs would be liable to curdle, which would considerably
deteriorate from its quality. When the leason is set, pass the sauce
through a tammy into a basin, or bain-marie, for use.
This sauce is in much request, as the foundation of many others,
especially fish sauces.