For their first challenge, the bakers were asked to bake 24 cupcakes in two hours. They were allowed to make two different types of cupcakes. For the technical challenge, the bakers were asked to bake a Coffee and Walnut Battenburg cake using Mary Berry's recipe in two hours. The cake needed to have the perfect sponge which held its form (perfect symmetry), distinguish flavours, and a smooth exterior. For the showstopper, the bakers were asked to bake a chocolate tiered celebration cake with elaborate, multi-layer design in five hours.