Krispy Kreme is the hottest donut franchise in the U.S. right now. Their stock recently went public, and they are doing very well. They have mostly been located in the southern U.S., and are starting to move northward. For months after a new location opens, they must keep a traffic cop around to avoid jams.

The lure is that the donuts are served still fresh and warm, and the ingredients are better than average quality.