Plain chocolate is the least sweet and contains no milk so has the most pure chocolate flavour. Milk chocolate is sweeter, and the addition of milk gives it a creamier flavour and texture. White chocolate is the sweetest and is made from cocoa butter, sugar, milk and vanilla with a mellow buttery texture and flavour. If you like plain chocolate and are new to chocolate making, it's recommended that you start with plain chocolate as it is the easiest to temper. White chocolate is the hardest with milk somewhere between the two.