By Keith Laing - 01/17/12 03:44 PM EST
TSA said in a post on its blog earlier last week that cupcake "icing falls under the 'gel' category" on its prohibited items list.
"Unlike a thin layer of icing that resides on the top of most cupcakes, this cupcake had a thick layer of icing inside a jar," the TSA blog post said. "In general, cakes and pies are allowed in carry-on luggage, however, the officer in this case used their discretion on whether or not to allow the newfangled modern take on a cupcake per 3-1-1 guidelines. They chose not to let it go."
-This story was corrected from an earlier version on Jan. 18 at 10:00 a.m.