All Available Season All Season Series 1 Aug, 2014 10 episodes 0.0 Series One of the Great British Bake Off: An Extra Slice was hosted by Jo Brand, airing every Friday during the main show's fifth series from 8 August 2014. Series 2 Aug, 2015 10 episodes 0.0 Series 3 Aug, 2016 10 episodes 0.0