Never been to Boston but I've got a few days to wander the city. I know it may sound vague but hopefully my intention is clear, I'd like to find something to eat that I just won't really find anywhere else (I mean, I'm sure there are excellent chowder/crab cake places, and I love it, but I can get that at least passably good here too). For example, if I had a guest that had never come to San Diego before, we'd probably immediately go get carne asada fries, since that is a pretty unique to my area.
I've browsed the board and found things like Central Kitchen and Legal Seafood, but I'm looking for that specific dish that you get a hankering for when you're starving at 1 a.m. kinda thing.
Does somebody in Boston slide something on a bun that is delicious and I won't ever find in California? Let me know!