Crossword Genius

Vegetable ingredient in hot cake Harriet baked (9,5)

Ross

I believe the answer is:

artichoke heart

I'm a little stuck... Click here to teach me more about this clue!

'vegetable' is the definition.
(I know that artichoke heart is a type of vegetable)

'ingredient in hot cake harriet baked' is the wordplay.
'hot cake harriet' can be anagrammed to 'ARTICHOKE HEART'.
However, I am not clear how this is indicated.

Can you help me to learn more?

I've seen this clue in The Everyman puzzle in The Observer.
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