I'm afraid I haven't! My mother was a young wife in the 70's; she was interested in Western-style cooking, but I can't recall much gelatin being used. If the fad was still... a thing decades later.

[Mayuko is careful about getting into people's personal space. Thank years of exposure to Sohma sensitivities on that score. But she is trying to peer at the text for clues.]

Which places are being mentioned, if I may ask?