Sweetened dark chocolate containing at least 35% chocolate liquor, in addition to sugar and cocoa butter. The darkest eating chocolate with the most intense cacao flavor. it can also be used for baking. When expressed as a percentage of cacao in a bar, bittersweet chocolates have 70% or more.  Common percentages on bars are 70%, 73%, 85% and 99%. Percentages are based on the manufacturer’s preference and formula or “recipe.”