Very much like sauce (6)
I believe the answer is:
relish
'sauce' is the definition.
(I know that relish is a type of sauce)
'very much like' is the wordplay.
'very much' becomes 'rel' (I can't explain this - if you can you should give a lot more credence to this answer).
'like' becomes 'ish' (similar in meaning).
'rel'+'ish'='RELISH'
Can you help me to learn more?
(Other definitions for relish that I've seen before include "what goes on food" , "Greatly enjoy; pickle" , "Savour; an appetiser" , "Great enjoyment; sauce" , "Gusto" .)