Is a KitKat a chocolate bar or a biscuit?

The Charles Fudgemuffin blog conducts a chocolatey investigation into a controversial but important question...

Android KitKat. Definitely an operating system.
But is it named after a biscuit or a chocolate bar?

At the office where I work we rarely get the chance to chat because we're always so busy working hard at our jobs all the time. However, during a rare quiet moment the other day we did have a brief chat, and one subject which cropped up was the question, 'Is a KitKat a chocolate bar or a biscuit?'

This produced a heated debate with some voices arguing passionately that a KitKat was categorically a chocolate bar, and other voices confidently declaring that a KitKat was most definitely a biscuit. In an attempt to resolve the matter, we consulted various sources, including Wikipedia, our manager, and even KitKat.com, but not even the official KitKat website provided a definitive answer.*

So in the end it was decided that the best thing to do was to put it to the vote. The office vote was too close to call, so I've therefore carried the debate over to the Charles Fudgemuffin blog. If your mind is already made up on the KitKat debate, then please register your vote at the poll below. Alternatively, if you'd like to hear a few pro-chocolate bar and pro-biscuit arguments before making your decision, then scroll down the page for a brief summary of some of the arguments put forward during our office discussion.

Poll: Is a KitKat a chocolate bar or a biscuit? - Vote in the poll