/u/JeffHoffman on I am Jeff Hoffman, MIT Professor of Aerospace Engineering and former NASA Astronaut. Ask Me Anything!19 Feb 2015, 19:15 UTC
Neither one would work in space. Pie is too messy and cake has too many crumbs. Actually, crumbs are a serious problem in space, because they don't fall on the floor - they float around, and you can breathe them in. So we try not to take foods that produce too many crumbs.