Every dessert on the list is in nationally published cookbooks. (I used to collect them and still have some.) None were regional. I think most were just…forgotten. Glad to see your mom is still making icebox cookies.
A few notes:
Nesselrode pie–had it on a plane as a kid in the late Sixties, back when planes had meals with china. It was popular in the Forties through Sixties. I think anything with candied fruit went out of favor around then.
Indian pudding–Dates back to colonial days, when it was cornmeal mush with molasses. (I’ve read early colonial pumpkin “pies” were pumpkins with the goop scooped out and milk, eggs and molasses baked inside the shell. Wheat flour was scarce.) I’ve seen references to Indian pudding in books published in the Thirties and before. Anything made with cornmeal was referred to as “Indian” at one time. (SMH)
Bavarian cream–even though it’s called Bavarian cream, the cream in the doughnuts is more like pastry cream. I’ve seen bavarois on the Great British Baking Show, but only as part of other desserts. I remember seeing it at the hospital cafeteria where I was a Candy Striper, but I’m pretty sure it was made with Jello and whipping cream.
Baked Alaska–I don’t know when its heyday was, but as a kid in the sixties, I read about it in novels and heard about it on TV shows. I made it for a dinner party. The ice cream started melting when I browned the meringue, but it was delicious. I wish I’d had a creme brulee torch.
I see what you did there.