The Great British Bake Off: An Extra SliceSeries 1Season 1 · 2017 · 10 episodesEpisodes1Episode 1Kicking off the series, Jo is joined by brand new GBBO judge Prue Leith, as well as a panel of famous Bake Off fans who discuss all things from Prue's technical challenge to the tricky illusion cakes2Episode 2Jo Brand chats to a panel of celebrity Bake Off fans, examining all the goings-on from the tent, with exclusive footage and special guests.3Episode 3Jo Brand chats with celebrity Bake Off fans and shines a light on the best, worst and the must-try-harder moments from the latest episode. With exclusive footage.4Episode 4Jo Brand chats with celebrity Bake Off fans and shines a light on the best, worst and the must-try-harder moments from the latest episode. With exclusive footage.5Episode 5Jo Brand chats with celebrity Bake Off fans and shines a light on the best, worst and the must-try-harder moments from the latest episode. With exclusive footage.6Episode 6Jo Brand chats with celebrity Bake Off fans and shines a light on the best, worst and the must-try-harder moments from the latest episode. With exclusive footage.7Episode 7Jo Brand reviews the events of Italian week, talking to this week's eliminated baker and introducing unseen footage from the main programme. She also asks her celebrity panellists for their thoughts and invites them to taste the audience bakes.8Episode 8Jo Brand is joined by celebrity fans to discuss how the competitors fared dealing with the unfamiliar recipes of Forgotten Bakes week, and chats to the eliminated contestant. There's also unseen footage from the main programme, viewers' photos of their creations and members of the audience bring in their own home-baked treats.9Episode 9Jo Brand looks back at Tuesday's semi-final, presenting highlights and unseen footage from the tent as the four remaining bakers competed for the three places in next week's final. This week the theme was patisserie, and here Jo and her fellow panellists meet the unlucky contestant whose efforts were not quite good enough to impress Paul Hollywood and Prue Leith.10Episode 10Jo Brand is joined by many of the main players as she looks back at this year's final, chatting to the winner and presenting unseen footage from the show. Celebrity guests also have their thoughts on the show, and there will also be the usual viewers' bakes - both good and bad. Last in the series.Season 2Season 3Season 4Season 5Season 6Season 7Season 8Season 9