Soft buttery sweet (5)
I believe the answer is:
fudge
'soft buttery sweet' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for fudge that I've seen before include "Cook - candy" , "sugar, butter and cream" , "Sweet; nonsense (arch.)" , "Sweet - evasion" , "Soft buttery sweet" .)