Wow...flashback time! E_in_SF introduced us to those decades ago. And then
after Gail's Swap had a huge discussion on them, Gourmet magazine ran it in their 2003 issue....months after we were already enjoying the concept thanks to E.
I seem to recall watermelon being a frequent one. Those NM versions sound amazing.
Now why can I remember that, but have not clue what day of the week it is???