what is the origin of chocolate truffles?

Answer 1

There are three main types of chocolate truffles:
American
Joseph Schmidt, a San Francisco chocolatier, and founder of Joseph Schmidt Confections, is credited with its creation in the mid-1980s. It is a half-egg shaped chocolate-coated truffle, a mixture of dark or milk chocolates with butterfat and hardened European
Made with syrup and a base made up of cocoa powder, milk powder, fats, and other such ingredients to create an oil-in-water type emulsion unknown as to to give credit for this one.
Swiss
Made by combining melted chocolate into a boiling mixture of dairy cream and butter, which is poured into molds to set before sprinkling with cocoa powder.
These have a very short shelf-life. The others do not . The Swiss truffle must be consumed within a few days of production.