This week's Signature Bake is a traditional yule log. The Technical Bake features a surprise recipe based on judge Johnny Iuzzini's Italian heritage, and finally, The Showstopper Bake has the bakers bringing their unique take to holiday fruitcake while incorporating a "Twelve Days of Christmas" theme. With bold flavors such as rosemary almond cream, pumpkin spice Swiss roll and five golden rings carrot pineapple fruitcake, these bakers are bringing their A-game on "The Great Holiday Baking Show".

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