Original: Regulations also govern what may be marketed as '' white chocolate '' : In the United States , since 2004 , white chocolate must be at least 20 % cocoa butter ( by weight ) , at least 14 % total milk solids , at least 3.5 % milk fat , and less than 55 % sugar or other sweeteners .
Simplified: In the United States , white chocolate must be at least 20 % cocoa butter , at least 14 % total milk solids , at least 3.5 % milk fat , and less than 55 % sugar or other sweeteners .