It's my caramel mixture - it seems kind of uneven (12)
I believe the answer is:
asymmetrical
'uneven' is the definition.
(thesaurus)
'it's my caramel mixture' is the wordplay.
'mixture' indicates an anagram.
'its'+'my'+'caramel'='itsmycaramel'
'itsmycaramel' is an anagram of 'ASYMMETRICAL'.
'it seems kind of' acts as a link.
This may not be right. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for asymmetrical that I've seen before include "Irregular in outline" , "Crooked" , "Not even" , "a gymnast would use such bars" .)