Sun dried tomatoes, pineapple and mixed peppers. Though I had capers and some kind of 'pine cone' thingies on a pizza in a trendy place in the Lake District a zillion years ago and it was tremendous - wish I could have it again.
'Nduja is made using meat from the head (minus the jowls, which are used for guanciale), trimmings from various meat cuts, some clean skin, fatback, and roasted Calabrian chilli peppers, which give 'nduja its characteristic fiery taste.
Well... that sounds... a bit grim to be honest
try it. you’ll never look back!
why complicate it any further.