whatever fresh berries I can find (rasberries and blackberries, today)
and 1/2 of a miraculin tablet. The tablet is made from a rare berry
found only in West Africa.
Check out the wikipedia entry: http://en.m.wikipedia.org/wiki/Miraculin?wasRedirected=true
- Interesting stuff. You can snag your own stash at thinkgeek.com.
It makes a Guinness draught taste amazing.