Black pearls,' 'underground empress,' 'the diamonds of the kitchen', truffles are one of the most prized ingredients, partly because of their amazing complexity and depth of flavour, and because they're incredibly difficult to find. The Inaudi family - master truffle hunters from the Piedmont region of Northern Italy have been collecting these treasures for almost a century, and they know truffles like no-one else. They love to experiment, creating truffle oils, sauces, and even pasta.