for the bakers' first challenge, a family-sized signature cake was set. this was set to be done in two hours, and should show the baker's style. for the technical challenge, maggie's recipe for her constitution cake. it combined indigenous australian fruits and icing to make three cakes. it was to be done in two and a half hours. a hidden design cake was set as the showstopper challenge. in five hours, the bakers must create a cake that shows a pattern or design once cut into.