sponge

The cake contains a double chocolate ganache, dark chocolate sponge and a layer of dulce de leche - a caramel made of butter, milk and sugar with extra cream which is popular in Latin America.

John Weatherley, who coaches him alongside Barry Parker, said: "You can tell he's special. He's got a lot of style and is like a sponge when he's learning anything new."

In January, for example, researchers found corals, sponges and even giant sea spiders some 750 feet under the waves — all suddenly unearthed when a glacier broke free during a Schmidt Ocean Institute voyage.

"We had tapioca, semolina, treacle sponge pudding, as well as jam roly-poly, cake with icing and sprinkles, chocolate cake and pink custard, and more."

The rubber material that would normally soften the grip, and the sponge around the shoulder, were replaced by rubber his team cut from old bicycle tires.