Plot: The pressure cookers are out, the table has been laid and the trophy has been polished - MasterChef is back, opening its doors to a new batch of aspiring chefs all battling to become Britain's best amateur cook. Across twenty-five episodes spread over seven weeks on BBC One, the contestants face extraordinary culinary challenges, expert critique and the trusted MasterChef faces, as John Torode and Gregg Wallace return to the judging table on the hunt for the twelfth champion