Tottenham cake is a sponge cake baked in large metal trays, covered either in pink icing or jam (and occasionally decorated with shredded desiccated coconut), and then cut and sold in squares. The mass-produced and cheap nature of the cake means it is usually made and sold commercially.
A Tottenham Hotspur fansite states that Tottenham Cake "was originally sold by the baker Henry Chalkley (who was a Friend or Quaker) at the price of 1 old penny, with smaller mis-shaped pieces sold for 1/2 an old penny", adding that the pink colouring was derived from mulberries found growing at the Tottenham Friends burial ground.[1]
Although therefore not directly linked to the football team, Ted Willis recalls in his autobiography that, "In 1901 it was given away free to local children to celebrate the Spurs' first victory in the FA Cup Final".
Willis describes the cake as being "a peculiar local invention" of north London, but the cake is now mass-produced by the Greggs chain of bakers. The above-mentioned fansite also reports that the cakes are also still baked for Tottenham Friends meetings (still using mulberries).