Curdled milk runs under container for fantastic pie? (4)

I believe the answer is:

skyr

'curdled milk' is the definition.
(skyr is a food made from curdled milk)

'runs under container for fantastic pie?' is the wordplay.
'runs' becomes 'r' (cricket abbreviation).
'under' means one lot of letters go next to another.
'container for fantastic pie?' becomes 'sky' (as in 'pie in the sky').
'r' after 'sky' is 'SKYR'.

(Another definition for skyr that I've seen is " cheese".)

I've seen this clue in The Times.

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