Correct! Anagram of 'acme' meaning 'the very best' - 'pickled' being the anagram indicator. @Duck59 thought that might not be admissible by some, as the word 'acme' wasn't in the clue itself.I only came up with 1 slice. The other 4 I came up with were herbs.
Balm, mint, dill and sage are all herbs.mace