Best Street Fairs for a foodie
Well, you'll get some catty responses to this, because most street fairs in the city AREN'T good for foodies. They've become homogenized over the years with Mozzerepa, fruit shakes, Chimney Cakes, and other TMd products you can get anywhere.
That being said, you might want to check out next year around May 18th the annual Ukranian Street Fair on 7th Street west of Second Avenue. It's a lovely, small affair put on by the Ukranian community, homemade pirogi and other specialties, and one of the only street fairs in NY that you will find that is actually put on BY the community as opposed to some company renting the block for the day to sell crap.
Also in late April is the Taste of Chinatown Festival which is awesome. Mostly food you could get going to each restaurant on a slow day, but here you can taste a bunch of stuff very cheaply and walk around the neighborhood on a nice day.
re: Midtown Jimmi
I didn't know about the Ukranian Festival, but I'd probably enjoy that one. I agree that the street fairs in Manhattan have become a homogenized mess of lousy food and chaserye.
The Bastille Day Festival on 60th street at 5th Ave on or near July 14th is not a generic fair, and usually is a lot of fun for the whole family.
I was at the 2nd Av. fair yesterday. Perhaps because of its extent (69th to 86th Sts.), more than the crappy street fair standards (ugh, what an AWFUL, grossly undercooked crepe I got at La Belle Crepe - should be "Crap," rather than crepe) were represented. For example, there was a cheesecake stand that was pretty good - not quite up to Two Little Red Hens, but way above the run of the mill. Some area restaurants also had stands, such as a branch of Totonno's, though I don't know how good they were. I think the thing to do is find out what the standard stuff is and consider getting anything else.
I do like the Ukranian festival. You can get good kielbasa, decent varenniki, sauerkraut, stuffed cabbage, and some nice homemade desserts there.