[Photograph: flickr certified su]

Whether creamy or crunchy, with or sans jam (and shoot, we could write an entirely separate quiz on jam), peanut butter is one of the most universally loved and widely versatile spreads out there. I mean, even small domesticated animals like peanut butter. The only one who may not like it, is this guy. But he's a rare case. And with school back in session, PB&Js are even more in season. So how much do you know about peanut butter? Take the quiz! »