[perihelions]

By chance, someone posted the text on Reddit two years ago,

https://old.reddit.com/r/Old_Recipes/comments/ydmncf/searchi... ("From Better homes and gardens cookbook 1953")

The one in this very specific 1953 cookbook is not an egg-based custard, but uses as a thickening agent condensed mushroom soup, from a can.

[Stratoscope]

Very interesting, thanks! That one is very different from what my little sister and I made as kids. Ours was more like the one from ChatGPT that I posted above.

We were big fans of cream of mushroom soup, though. Our favorite was to mix a can of that and a can of tomato soup (with the usual 50/50 dilution with water). We called it "cream of tomato".