Caramel-topped custard
I believe the answer is:
flan
'caramel-topped custard' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for flan that I've seen before include "Baked and filled pastry case dish" , "Open pastry case with savoury filling" , "Baked dish filled with fruit or custard" , "Quiche-like dish" , "it may get jammed" .)