WHERE CAN I FIND?
It's getting very late for rhubarb. Check Lucy's Greenmarket Report to see if any of the Union Square farmers are still carrying it the day you want to visit.
They're not exactly the same but you can get boiled peanuts throughout Chinatown.
I am pretty sure I've seen Palatschinken with apricots at Cafe Sabarsky even though it doesn't appear to be on the menu now. They could probably make it off menu or you could go to Andre's Cafe or substitute Kaiserschmarrn if you don't mind chopped up pancakes.
1048 5th Ave, New York, NY 10028