Use coolest mocha mixed with dessert (9,6)

I believe the answer is:

chocolate mousse

'dessert' is the definition.
(chocolate mousse is a kind of dessert)

'use coolest mocha mixed' is the wordplay.
'mixed' indicates an anagram.
'use'+'coolest'+'mocha'='usecoolestmocha'
'usecoolestmocha' anagrammed gives 'CHOCOLATE MOUSSE'.

'with' acts as a link.

(Another definition for chocolate mousse that I've seen is " oily sea foam".)

I've seen this clue in the Sydney Morning Herald.

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