My first thoughts were ...
* Rice Pudding
* Bread Pudding ... many go eww ick, but you can spiff it up to be a real treat! Just don't tell people the name, til they say ... Delicious!
And of course, when in doubt, ask Google!Q
For me, Taste of Home recipes have been winners over and over. Maybe not all are book club possibles, but may trigger some happy food memories too!
https://www.tasteofhome.com/collecti...rom-the-1930s/
Here's some historical food information from the 30s ... and researched via University of Guelph. It just might fit well with your book topic for discussion .... and eating! Bon Appetit!
https://whatcanadaate.lib.uoguelph.ca/exhibits/show/rural-cookery/100-glorified-recipes/cooking-up-history
And there are oh so many rabbit holes to go down for foodies and history!