You've seen it drizzled over everything from French fries to fancy pasta. Truffle oil has become the go-to ingredient for adding a touch of luxury to ordinary dishes. Walk into any restaurant with ...

For the uninitiated, truffle oil is olive oil infused with truffles, a member of the fungi family. Truffles are revered by fans for their woodsy, earthy, umami-packed flavor and a musky aroma that's ...