Dessert on the turn? (6-4,4)

'dessert' is the definition.
The answer and definition can be both things that one consumes for nourishment as well as being singular nouns.
Perhaps you can see an association between them that I don't see?

'the turn?' is the wordplay.
I cannot really see how this works, but
'turn?' could be 'side' (side is a kind of turn) and 'side' is found in the answer.
This may be the basis of the clue (or it may be nonsense).

'on' acts as a link.

Can you help me to learn more?