Just add butter circulates as a short internet meme sound rather than a line tied to one widely documented film, show or viral creator, so its appeal comes from the phrase itself. Online, it is shared as a compact reaction clip for cooking content, fail videos and ironic advice, where a familiar kitchen ingredient is jokingly presented as the answer to almost anything. Its brevity makes it easy to reuse, remix and drop into fast-paced edits, and that flexibility has kept the simple slogan recognisable among meme soundboards and short-form video creators.