Jaffa Cakes are not biscuits.
Biscuits start off hard and then go soft when they get old. Cakes start off soft and then go hard. McVities went to court to prove this definition and that their product was therefore a cake and not a biscuit.
The sale of biscuits attracts extra tax as they are classed as a luxury item, whereas the sale of cakes (being clearly essential) does not. Hence why they cared.
Biscuits start off hard and then go soft when they get old. Cakes start off soft and then go hard. McVities went to court to prove this definition and that their product was therefore a cake and not a biscuit.
The sale of biscuits attracts extra tax as they are classed as a luxury item, whereas the sale of cakes (being clearly essential) does not. Hence why they cared.