Huge hunk of vanilla icing - just plain vanilla, not the signature cream cheese vanilla, which makes it eat less like a steak and more like...sticking your head in a bag of refined sugar and inhaling. Also, that fudge in the middle? It has a mind of it's own. Fork recommended, lest you elect to assume "messy chili-dog stance" on a street in Bethesda. Fenway Park, it is not.