There are plenty of species of truffles, but only a few are prized as edible. White and black truffles are the favorites, with white being a little more dense and pungent. While they are difficult to cultivate, it is possible – and folks still use their specially trained truffle hogs, or even dogs, to help sniff them out among the acorns.
Now, for those of you who fancy the round chocolate confection, a man named Louis Dufour invented the chocolate truffle in Chambéry, France in 1895. A few years later, Antoine Dufour (relationship unknown) opened the Prestat Chocolate Shop in London, popularizing chocolate truffles in England.
Today there are three main types of chocolate truffle—American, European, and Swiss. Each type has a slightly different twist, but they all include a creamy ganache filling and a topping like cocoa, coconut, or drizzled chocolate.