This clip is best understood as a short meme sound rather than a line from a documented film or show, and its appeal comes from its simplicity. On soundboards and in short-form edits, brief repeated phrases travel quickly because they are easy to recognise, easy to reuse, and instantly readable without context. Add butter works in that tradition: the words are everyday, the delivery is insistent, and the repetition gives editors a ready-made punchline for food content. That flexibility is why it keeps appearing in cooking clips, reaction edits, and videos, even without a famous original scene behind it.