
The cake is briefly mentioned in Portal 2 when GLaDOS creates a trap for Chell with a door labeled, "GLaDOS Emergency Shutdown and Cake Dispensary, Keep Unlocked" (revealed to be a trap by GLaDOS, who comments, "I honestly, truly didn't think you'd fall for that.").


It seems the cake is actually intended for GLaDOS herself how she is presumably going to consume it is unknown. Rattmann is not entirely wrong: while the cake itself exists, the lie resides in receiving the cake after the tests. However, GLaDOS later states that she is going to kill Chell, and that "all the cake is gone." But after Chell partially destroys GLaDOS and is taken by the Party Escort Bot, GLaDOS activates a series of Personality Cores, while at the same time extinguishing the candle on the cake, which was not a lie after all. Upon arrival at Test Chamber 16 however, Chell discovers desperate messages scribbled on the wall by former Aperture employee Doug Rattmann, who went mad during his captivity, and was convinced that the "cake is a lie." Upon the completion of the test, Chell is met with an incinerator, apparently confirming that the cake is indeed "a lie." While making her way through the abandoned facility, GLaDOS tries to convince her to turn back by telling her that "somebody cut the cake" without waiting for Chell. Upon Chell's awakening, an unknown period of time after the facility was taken over, GLaDOS makes her navigate Test Chambers utilizing the Portal Device, with the promise of cake and grief counseling at the conclusion of the test. After GLaDOS' takeover in May 200- however, she incinerates Test Subjects after the completion of tests, negating the need for the cake as a reward, but still uses it to motivate Test Subjects. However, some Black Forest cakes alternate with a covering of chocolate shavings, such as the type produced by Aperture Science.įor a time in the Aperture Science computer-aided Enrichment Center, Black Forest cake was used as a motivational object for Test Subjects utilizing the Aperture Science Handheld Portal Device. The Black Forest cake, alternatively referred to as the "Black Forest gateau," Or called "Fish shaped cracker cake" or simply "cake," typically consists of layers of chocolate, with whipped cream between layers, cherries on top, and sprinkled with white icing.

The cake, a radio and the Aperture Science Red Phone on the desk of the lobby of GLaDOS' chamber after the end of Portal.
