Marmite and other "unique" foods

Several months ago, someone on this list mentioned Marmite.
It sounded interesting and I've been trying to find it ever
since.  I finally did, and - wow!  What a foodstuff!  I've
finished half the jar in 3 days.  It joins hot mango pickle
and sauerkraut juice in my list of favorite foods that my
family flees from.

To relate this to conlanging (or manybe conculturing), do
any of you have similar food items in your invented speaking
communities, i.e., foods whose origin or method of production
cause jaws to drop but which taste wonderful?  The Kadane
(who speak my conlang Vogu) are pretty boring in this regard,
I guess, because nothing comes to mind.  I'll have to explore
this area more deeply.

-- Terry