Which type of chocolate is known for having the highest cocoa content?

Dark chocolate is recognized for having the highest cocoa content compared to the other types of chocolate mentioned. Typically, dark chocolate contains a higher percentage of cocoa solids and cocoa butter, while having little to no milk solids. This results in a more robust chocolate flavor and a greater concentration of cocoa-derived compounds, which can include antioxidants.

Bittersweet chocolate, while also having a high cocoa content, is usually used in specific baking contexts and may have slightly lower cocoa content compared to some varieties of dark chocolate depending on the formulation. Milk chocolate contains milk solids, which contribute to a creamier texture and sweeter flavor but also reduce the overall cocoa percentage. White chocolate, on the other hand, contains no cocoa solids at all; it's made primarily from cocoa butter, sugar, and milk solids, making it the least chocolatey in terms of cocoa content.