I believe that it’s best to leave some things to the experts, and for that reason, I don’t often make chocolates. But truffles are another thing. They’re relatively easy to make and the joy they bring to everyone is disproportionate to the effort. You could omit the hazelnut praline altogether, but it provides a wonderful textural contrast to the rich, smooth ganache and will leave your friends shaking their heads in disbelief that you made these glorious orbs yourself.