Fusion, but not fission (7)
I believe the answer is:
cuisine
(Other definitions for cuisine that I've seen before include "(Regional) style of cooking" , "French cooking?" , "The food" , "Local cooking style" , "Style of cookery" .)
I believe the answer is:
cuisine
(Other definitions for cuisine that I've seen before include "(Regional) style of cooking" , "French cooking?" , "The food" , "Local cooking style" , "Style of cookery" .)