Chocolate

The cocoa mass is mixed with cocoa butter in such proportions that the resulting product contains about 30% fat.

An excerpt from the article 16 facts about Chocolate
This stage also requires adding sugar. All this mass goes to the heated conchs, where it is intensively mixed. Thanks to conching, the chocolate loses excess bitterness, becomes milder in taste, and gains a smooth consistency. The process of conching takes 72 hours on average, and may even last up to a week. Depending on the type of chocolate, flavorings such as vanilla may be added in the last stage of conching.