The bakers attempt to perfect traditional German biscuits in the Signature, followed by a Technical torte fit for a prince. Finally, they must rise to the challenge by creating a tiered cake using yeast.
Starts: Noel Fielding, Matt Lucas, Paul Hollywood, Prue Leith, Lizzie Acker, George Aristidou, Freya Cox, Giuseppe Dell'Anno, Amanda Georgiou, Jürgen Krauss