inNational Truffle Day on May 2 serves up a deliciously sweet treat and places the chocolate truffle in the spotlight. So, if you need an excuse to indulge in some decadent chocolate, today is a great day. And while you are enjoying the ‘feel good’ effects of the chocolate, share this history with your friends and family: Chocolate truffles were created in the city of Chambéry by the pastry chef Louis Dufour on Christmas Day in 1895. In the 1980s, demand for chocolate truffles in the United States increased dramatically; before 1980 they had been very uncommon in the country.