6. Stir in the Parmesan cheese, butter, and truffle oil until everything is nicely combined and the risotto is creamy and easy. A good way you can incorporate this delicious ingredient into your kitchen is thru truffle oil. The flavour they add to almost any dish is super and when using truffles in a paste or oil can actually be quite inexpensive. Truffle oil is usually made by infusing a impartial oil, reminiscent of olive oil or grapeseed oil, with the essence of truffles. Truffles are often associated with special occasion meals as a consequence of their price. And just as the truffle hogs and hounds are costly to prepare, cooks and chefs have turned to truffle oil as the lesser expensive ingredient.