Behold Sumo Citrus. The story behind this citrus fruit goes something like this: In the early 1970s, a Japanese farmer set out to mix a sweet satsuma and a large orange. He had difficulty at the time, but farmers have perservered and now Sumo Citrus are available in the U.S. as well as Japan and Korea.
They're basically the biggest mandarin you've ever seen, with a nubby bump at the top. They peel easily, are super sweet and virtually seedless. You've got to try one. Trust us on this one.
(Image: Megan Gordon)