Sauce Périgueux
The science
The truffle's aroma compounds — including the powerful dimethyl-sulfide and androstenone notes — are fat-soluble and volatile, so they bloom into the buttery, Madeira-laced demi-glace and are added late to preserve them. A close cousin, Périgourdine, uses whole truffle slices and often foie gras rather than chopped truffle — the distinction between the two is the cut and luxury level of the truffle. This is classical French cooking at its most opulent.
Flavor profile
Sauce Madère with chopped Périgord black truffle (and its juices).
Culinary uses
Tournedos, filet de bœuf, vol-au-vent, eggs, and other showcase dishes where black truffle is the point.
Reference notes
Parent: Sauce Madère → Demi-glace. Ingredient: Périgord black truffle (luxury ingredients hub). Sibling: Périgourdine. Region: Périgord.