23. PERIGUEUX SAUCE.*
CHOP six or eight truffles extremely fine, put them into a stewpan with two glasses of white wine, a little lean ham, some thyme, and a bay-leaf; set these to boil gently on the stove-fire for a few minutes, then add a ladleful of brown sauce and a little consommé; stir the sauce on the fire till it boils, and then set it by the side to clear itself; skim it well, take out the ham, the bay-leaf, the thyme, and, after reducing it to a proper consistency, pour it into a bain-marie for use.
Just before dinner-time, add a small piece of butter, to soften the flavour.