I'm crazy for... snack slogan?!

My final for English is a 2 page recollection paper of what we've gone over the course of the semester, all of which I am already finished (it's essentially and easy A). However, we get an automatic A if we bring in my professors favorite snack to class on the last day. I'm not too concerned about the grade since I'm 90% sure I'm going to get a B no matter what I get on the final, this is just a simple case of curiosity! I found the clue for the snack on the assignment sheet which is "I''m Crazy for..." He said I was on the right track with it and I tried the great tool of Google, but all I got was insane-people-blogs and Lifehouse lyrics. A few other clues he told the class is that he is a vegetarian and he generally doesn't eat sweets. If you can help great and thank you!