It's a magic trick and party food rolled into one.
Just to check that this was not some hoax, I looked for other videos and found out that his is how you can make this amazing illusion of a cake:
|Photo courtesy of Joe's Cheesteak FB Page|
|Photo Courtesy of@sandydaza77|
|You can click here, too.|
|This is definitely a non-dieter's salad.|
|Red cabbage to make green eggs? Seriously?|