An ingredient list can tell you what goes into a dish. It cannot always tell you why that dish matters, who taught someone to make it, or when it appears on the table.
Food becomes more interesting when we notice those other details. The preparation, the occasion, and the act of sharing can carry as much meaning as the finished plate.
UNESCO describes foodways as living heritage: knowledge, skills, and social practices passed between generations. Its International Food Atlas work treats food as connected to identity, seasons, migration, and adaptation. Source: UNESCO
Ask a better question than “Is this authentic?”
Try asking how a dish is made in a particular household, what changes with the season, or why it is prepared for a certain occasion. Ask permission before recording or publishing someone's explanation.
The answers may differ. That does not automatically mean one cook is wrong. UNESCO's description of washoku, for example, presents it as a social practice involving food-related knowledge and traditions, especially around New Year—not simply a fixed menu. Source: UNESCO's washoku listing
When writing about a familiar dish, name your own version carefully. “The version served at this table” is more precise than claiming to define a whole cuisine.
For a food notebook, record the sensory details alongside the context: texture, smell, preparation, occasion, and what the cook chose to share. Credit the person or source with permission.
The result can be a useful recipe and a respectful story. Neither needs an exaggerated claim about discovering a secret that everyone else missed.