I'd for once like to read an isekai title, where each time the MC tries to introduce a food, the locals go "oh X, yeah, we have that" or "isn't that just Y, but more complicated?". Even Ice cream dates back to 17th century, if not a lot earlier. Add in some cultivars not being made yet and you'd have an interesting tale, too bad there is maybe only one author autistic enough to do this.
Alas, all we have are umimami worship and "let me teach you how to bread t. ricegobbler"
I guess that's just women being women