oyster sauce

Bonds are drawn from culinary literature and origin-tradition references, tiered by source. Origin means a reference from the place. Witness means the pairing is the place's own and the reference documenting it was written from outside.

The score is cultural weight: how central a pairing is in the tradition that documents it. It is not a prediction of how two materials behave in a formulation and not a measure of chemical affinity. The scale is ordinal, because centrality is a judgement rather than a measurement: 1.0 where the pair is the dish, 0.9 a fixed named form, 0.8 a canonical dish, 0.7 recurrent across many dishes, 0.6 common, 0.5 attested, 0.4 marginal or compound-led.

Each score is set against a named dish and carries that dish in its note. Where a score has not been examined it says so, because an inherited figure and a researched one should not look alike.

The dish is named by a reader who knows the cuisine and cites a source appropriate to it. It has not yet been confirmed inside that source page by page, so a note records what supports a score rather than what has been checked in the book.