I came into this thread thinking I would come up with something good, but that sounds so delicious I can't remember what I was going to suggest.
Pumpkin flavored ice cream. I work at an ice cream place, and when we had the pumpkin flavor, I packed a quart and brought it to my friend's house before we blazed. It was ridiculously delicious.
I work in a bakery...and when I have the munchies there I looove getting into the gourmet triple chocolate cookie dough. mmm... But tonight I'm going to have some spiced chai latte after I smoke.
I'd have to say...EVERYTHING is the best thing to eat while high. Anything that is edible tastes soooo good when baked. Except spicy food. I love spicy food SO much, but I hate it when high for some reason...