There is a different tax I believe on cakes and biscuits, so probably although Jaffa cakes are usually in the biscuit section in a store (people treat them as a biscuit), the manufacturers have called them cakes to pay less tax.
There was a dispute on those ice-cream cone look-a-likes in the bakers (marshmallow/hundreds+thousands) because they were deemed to be confectionery (sweets)not cakes, and again heavier on the tax.
Blimey, cetti that website must have dabbled in Kerplunk's paint box!! lol
Can't agree about Nice biscuits though - I quite like them
If you want your biscuits crispier, take them out of the oven during cooking (about half way through) for a few minutes, then continue cooking...in effect I guess that's where the term twice baked/cooked (for biccies) comes from?
they're cakes even though supermarkets put them in the biscuit section 'cos if you look at the bottom half its all spongey and cake-like. and they are called jaffa CAKES
:-D
I know someone who actually discussed this as part of a PhD thesis! He officially concluded that, as others have said, biscuits go soft when stale and cakes go hard when stale. Jaffa Cakes, which go hard, are therefore officially cakes.