Beginning with the Signature Challenge set by Mary and Johnny, the bakers create a dozen perfectly sized dinner rolls incorporating unique flavors and spices, including those traditional to Portugal and India. Next up, The Technical Challenge, where the judges once again surprise the bakers – this time it's Johnny's Christmas Stollen, a traditional German Christmas fruit and nut bread. Finally, for their Showstopper Challenge, the competitors must create elaborate sculptures with bread. In the end, Mary and Johnny will decide which bakers create a masterpiece and which sculptors crack under the pressure.

• Nia Vardalos
• Mary Berry
• Anthony 'Spice' Adams