What the heck is a Tardis?

Please don't be upset Doctor Who fans, but up until a few days ago I didn't know what a Tardis was.   I must have said "whaaat?" about five time when I was asked to make this cake.   Well, I hope I did the Tardis justice and I hope the Doctor Who fans out there like it.  Not a Doctor Who fan?  Don't worry it's just a "big, ball of wibbly, wobbly, timey, wimey stuff."

Yes. The Tardis is yummy cake, even if the birthday girl refused to cut it!