Truffle oil is olive oil infused with the taste and aroma of truffles.
Most truffle oils are not made from actual truffles but from a synthetic or ‘natural’ flavouring, which makes them cheaper, and a convenient substitute for the real thing. It is possible to find some oils based on real truffles, but they’re generally very expensive.
Use truffle oil as a garnish, especially with eggs or pasta, and only buy it in small quantities as it is very concentrated and perishes quickly once opened.
Article by Clarissa Hyman