Chocolate is a mixture of cocoa paste, cocoa butter, and sugar. The cocoa paste and butter come from the seeds of the fruit of the cacao tree (Theobroma cacao), a native of Central and South America, which is cultivated around the equator. To make chocolate, first the cacao seeds -- with centers more than 50% cocoa butter -- are fermented, roasted, and ground into a paste. Then other ingredients are added, which vary by manufacturer. Nearly 400 beans are required to make a pound of chocolate liquor -- the semiliquid mass produced by grinding the beans. Chocolate liquor, which is nonalcoholic, is the basis for all chocolate and cocoa products.