Prometheus dismissed sour dish made with fermented soya (6)

I believe the answer is:

tempeh

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'with fermented soya' is the definition.
I don't know anything about this answer so I can't tell whether this works.

'prometheus dismissed sour dish' is the wordplay.
'dismissed' is a deletion indicator.
'dish' is an anagram indicator (dish can informally mean to destroy).
'prometheus' with 'sour' taken out is 'pmethe'.
'pmethe' with letters rearranged gives 'TEMPEH'.

'made' acts as a link.

Can you help me to learn more?

(Another definition for tempeh that I've seen is " Indonesian soya dish; meet HP (anag.)".)

I've seen this clue in The Irish Times.

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