The seasonal sandwich enjoys a sizable (but not sizable enough to make the regular menu) following and features a boneless pork patty shaped vaguely like a rack of ribs, barbecue sauce, slivered onions, and pickles all on a hoagie-style bun.
If you're looking for a review, I wrote one a while back.
The sandwich has been spotted in at least parts of Texas, Georgia, North Carolina, South Carolina, Nevada, West Virginia, Missouri, Kansas, Illinois, Iowa, and Mississippi (It doesn't look like it's here in Southern California though). You can also try your luck with the online McRib locator.
Photo via McDonald's.
