Types of Chocolate,Chocolate varieties are classified based on the amount of cocoa solids they contain (which includes cocoa and cocoa butter). Cocoa butter is the vegetable fat portion that is extracted from the center of the cacao bean.
White chocolate is technically not chocolate because it contains a very low level of cocoa solids. White chocolate is made from a mixture of cocoa butter, sugar, milk and vanilla.
Milk chocolate is sweet and normally contains 10-20% cocoa solids and more than 12% milk solids. It is rarely used for baking.
Dark chocolate has a higher content of cocoa solids than milk chocolate, ranging from 35-80%. Dark chocolate with a higher content of cocoa solids will have less sugar and taste more bitter.
Unsweetened chocolate is almost 100% cocoa solids and is only used for baking.