I still have my grandmother's "cook" book-- it's more of a grimoire by today's standards though.

Plenty of recipes, but also info on plants, animals, and fungi as well as first aid, childcare, housekeeping, and "problem solving".

Hand bound with a hodgepodge of paper types/sizes, different inks, and different handwriting (not sure who else contributed beyond my grandmother).

This type of knowledge gets lost year by year in families in communities because nobody takes on the task of passing on or preserving information.

If it's not somebody's responsibility then it is nobody's responsibility.

Herb lore has really suffered from this form of cultural atrophy.