marbit
n.— «Circus Peanuts, and the marshmallow bits (called marbits) in Lucky Charms, are denser, grained marshmallows with some of the sugar in crystal form.» —“Mystery Of Circus Peanuts” by Richard Hartel, AnnaKate Hartel Capital Times & Wisconsin State Journal (Madison, Wisc.) Oct. 5, 2004. (source: Double-Tongued Dictionary)