The New York Times did a nesselrode search a few years ago and wrote an article from which I've pasted the critical paragraph:
URBAN TACTICS; To Find the Unfindable Pie
By BERNARD GWERTZMAN
Published: February 29, 2004
That scene, however, led to a string of events that brought the search to an end, in a way I would not have dreamed of, deep in Canarsie, Brooklyn. Also at that Christmas Day dinner was Maggie's mother, Nancy Tucker, who lives in the East Village. Shortly before last Thanksgiving, she accompanied a friend to a bakery in Brooklyn to pick up a few items, and while inside Teena's Cake Fair, at 1568 Ralph Avenue, she noticed an item labeled ''Nesselrode pie.''
Thanks, Enfielder. What do you expect from a comic strip whose main character loves Nash Metropolitans! (I haven't eaten it ever, but an advantage of getting nesslerode pie in a restaruant may be that you get a piece without having to worry about what to do with the rest of the pie.)