The new trailer shows the cast getting into the Christmas spirit, pulling crackers, wearing Xmas jumpers and having a jolly good time. Well, all bar Paul - who opens up the advert saying "Bah humbug", what a scrooge...
The trailer features the cast getting into the festive spirit, complete with Christmas jumpers
In what will be the show's last hoorah on the BBC before the programme moves to Channel 4 in the new year, the two episodes will see eight previous contestants going head to head to create a series of festive treats, including favourites Howard Middleton, James Morton and Chetna Makan. The show would not be complete without a dessert or two, and Mel and Sue ensure to tick that box by dressing up as Christmas Puddings.
The gang are set to embark on new adventures come the new year, with Paul Hollywood being the only remaining original member to move to the new series on Channel 4.
The cast of GBBO will be back together for a festive two-part Christmas special
Mary Berry is set to stay on the BBC, with the exciting news of her upcoming show, Mary Berry's Secrets from Britain's Great Houses being announced back in November, where the popular baker will explore Britain's great houses through her love of cooking.
Talking about her decision to stay with the BBC, Mary said: "It has been a privilege and honour to be part of seven years of magic in a tent… My decision to stay with the BBC is out of loyalty to them, as they have nurtured me, and the show, that was a unique and brilliant format from day one".
However, she made sure to bid a particular farewell to the shows well loved catchphrase: "I wish the programme, crew and future bakers every possible success and I am so very sad not to be a part of it. Farewell to soggy bottoms."
The judges are set to move on to new projects in the new year and this will be the last time they are seen together on the BBC
Meanwhile, Paul will no doubt be cheering up in time for the big move, having said of his decision to stay with the show: " I am delighted that I will be continuing as a judge when Bake Off moves to Channel 4. I want to thank the BBC and Mel and Sue for making my time in the tent great fun and really rewarding."
The two episodes will mark an end to six years of the popular show, having first aired back in 2010. Since coming on air, it has won several National Television Awards and was even nominated for a BAFTA. Winners have gone on to have high profile cooking and presenting careers, with the likes of Frances Quinn, Nadiya Hussain and most recently, Candice Brown cooking up a storm in the kitchen.
The Great Christmas Bake Off will be shown on Christmas Day on BBC One, with the second part being broadcast on Boxing Day.