Easter egg

Where to find the cake
Behind the chill area in the baking station, there used to be a portal that comes from the game "Portal". If you go through it, it brings you to a cake that when you get close to it, the cake disappears and a decal that says "The cake is a lie!" would show up on the wall. Now, it is replaced with a different 'candy-looking' portal that brings you to a different area that still has the cake, but it is not a lie and it also looks like it is made out of steel. You used to get a badge there called "The cake is a lie!", but now you get a badge called "Becoming Futuristic".

Where the phrase came from
The phrase "The cake is a lie!" was also used in the original game, Make a cake and feed a giant noob. But the phrase comes from the game "Portal" which is why the portal used to be a portal from Portal. Now, the phrase is probably not coming back to Make a Cake: Back for Seconds.