Truffle Essence

Older recipes for classic sauces often call for truffle essence. Truffle essence is prepared by infusing sliced truffles in a small proportion of brown stock in a covered saucepan. Today, truffles are so scarce that it is unlikely a restaurant would make truffle essence to have on hand to use in sauces. It is more likely that sliced truffles would be infused in the sauce itself or that the sauce would be finished with Truffle Butter or commercially available truffle juice (see Truffles).