White Truffles

Truffles are a must-have on any list of the world's most costly foods. We're not talking about chocolate truffles here; we're talking about the kind that pigs dig up. White truffles are even more valuable than black truffles, which are known as black diamonds. These fungus are a favorite delicacy in Italy's Piedmont and Tuscany regions, as well as in Tuscany.

Locals utilize truffle pigs or pricey canines like the Lagotto Romagnolo to seek out tuber magnatum, or Alba white truffles. The price of a pound of fresh white winter truffles ranges from $6,000 to $10,000.

Chefs use white truffles rarely because they are so pricey. Fresh white truffle can be grated on omelettes or used as a great salad dressing. White truffle butter is a terrific product to have on hand in the kitchen.

Price: $6,000 to $10,000 per pound