Whisk until completely melted. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. If vanilla or vanillin is only listed on the back in the ingredients section, it is likely just intended to mask off-flavors.â. The other, unless itâs a 100% bar, is sugar (or artificial sweeteners, something that most fine chocolatiers warn against). Credit: WKND Chocolate. This image may not be used by other entities without the express written consent of wikiHow, Inc.