A raisin pleasantly surprises me every time I bite into one. I'll step away for months at a time, but will then rediscover raisins at a movie or while watching TV. I'll forget that I'm eating them, and before you know it, they're gone!
One of the more useful fruits, raisins are nice and sweet little things on their own, but they go well with a lot of other things. They represent the ants in ants on a log, and can be put into cookies, cereal, crusts, and any number of other things.