This is not a chocolate but a rare fungi that is found on the roots of oak trees and often sniffed out by specially trained pigs. The truffles local to the Dordogne are black in colour and rich in flavour, although as their shelf life is short, they are best enjoyed fresh. With chic Parisian food stores often charging 300 euros or more for just 100 grams of the truffles, no visitor here will want to miss out on the opportunity to try the delicacies fresh from the source. Here, truffles are used to flavour rich sauces such as perigourdine, a speciality of the region that also features fois gras. Truffles may also be used in salads, or even wrapped in thinly sliced bacon which is then cooked over hot ashes.