Chocolate is a food made from roasted and ground cocoa beans that can be a liquid, solid, or paste, either by itself or to flavor other foods. Cocoa beans are the processed seeds of the cacao tree. They are usually fermented to develop the flavor, then dried, cleaned, and roasted. The shell is removed to reveal nibs, which are ground to chocolate liquor: unadulterated chocolate in rough form. The liquor can be processed to separate its two components, cocoa solids and cocoa butter, or shaped and sold as unsweetened baking chocolate. By adding sugar, sweetened chocolates are produced, which can be sold simply as dark chocolate, or, with the addition of milk, can be made into milk chocolate. Making milk chocolate with cocoa butter and without cocoa solids produces white chocolate.