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The tables are turned as Strictly Come Dancing judge Motsi Mabuse is judged by Paul Hollywood and Prue Leith, along with other celebrity bakers Olympic champion Sir Mo Farah, actor and children’s author Ben Miller and actress Katherine Kelly.

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0:00 Introduction: Motsi Mabuse
0:08 Signature Challenge: Meringue Roulade
1:34 Technical Challenge: Pistachio & Lemon Biscotti
2:27 Showstopper Challenge: 'Childhood Memory' Cake

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ABOUT BAKE OFF:
The Great British Bake Off is the ultimate baking battle where passionate amateur baking fans compete to be crowned the UK’s Best Amateur Baker.

ABOUT THE GREAT STAND UP TO CANCER BAKE OFF:
The Great British Bake Off welcomes an array of famous faces into the Tent to battle it out for the coveted Star Baker apron in aid of Stand Up To Cancer. In each episode, the celebrities tackle Signature, Technical and Showstopper challenges - all under the watchful eyes of judges Paul Hollywood and Prue Leith.