Overview: It is European cake week in the tent, so Jo and her panel of fans celebrate them by tasting audience bakes and looking at viewer photos of bakes from home - the triumphs and the tragedies. What do the panel think of the bakers' yeast-leavened cakes in the week's signature bake? How well do they think the bakers coped making a cake most had never heard of, a princess tarta? And what will they say about the challenging show-stopper bake - a two-tier dobos torte? The Great British Bake Off: An Extra Slice - perfect if you simply can't resist a second helping.