BBC One hosts a very special festive royal treat for viewers with A Berry Royal Christmas, produced by Shine TV.

This one-off special will offer a unique look into the charities that the Duke and Duchess of Cambridge support. Joining forces with them will be cookery legend, Mary Berry, as The Duke and Duchess invite her to accompany them on four of their royal engagements.

Throughout the programme Mary will also be cooking some of her favourite Christmas recipes for viewers to try out at home as she helps prepare the festive food for a very royal event to thank all those working and volunteering over the Christmas period.

The Duchess of Cambridge and Mary will travel to Liverpool to visit The Brink, the UK’s first dry bar set up by Action on Addiction, that provides a safe space for people who are suffering from addiction. The Duke of Cambridge and Mary will visit The Passage which is the UK’s largest resource centre for homeless and insecurely housed people.

Established in 1980, The Passage has since helped over 130,000 people in crisis through its resource centre, homelessness prevention projects and two innovative accommodation services. Along the way they will meet the inspiring people whose lives have been changed by the help and support these charities provide, especially at Christmas time.

Mary will also join The Duchess of Cambridge behind the scenes at RHS Wisley to learn more about The Duchesses commitment to the early years in raising the next generation of happy, healthy children.

The Duchess will also give Mary a tour of Wisley’s new play garden, which was inspired by the ‘Back to Nature’ garden that she co-designed at the Chelsea Flower Show which aimed to inspire children and families to get outside and experience the benefits of the great outdoors.

The one-off festive special will culminate in a Christmas party, hosted by The Duke and Duchess, and some very special guests, including Nadiya Hussain, who will be reuniting with Mary Berry to help with the festive food.

The party will be held to thank and acknowledge staff and volunteers from charities and organisations who will be working tirelessly over the Christmas period. Mary will be on hand to advise on the Christmas menu, and The Duke and Duchess will even be getting involved in the kitchen with the party prep.

Mary Berry says: “I am honoured that The Duke and Duchess of Cambridge have invited me to join them on four of their royal charity engagements this Christmas.

It will be truly special to see the causes so close to their hearts, as well as to hear all about the amazing support these charities provide. The finale is a big Christmas party and I will be cooking up a feast for them to enjoy. A one hour Christmas special not to be missed”

Charlotte Moore, Director BBC Content, says: “The Duke and Duchess of Cambridge join Merry Berry for an extra special festive show that shines the spotlight on the staff and volunteers from charities and organisations who dedicate their time over Christmas. Full of inspiring stories, festive food and Christmas cheer.”

A Berry Royal Christmas (1x60’) was commissioned for BBC One by Charlotte Moore, Director, TV Content. It is made by Shine TV, part of Endemol Shine UK. The Executive Producer for Shine TV is Tanya Shaw.

A Berry Royal Christmas airs on Monday 16 December at 8.30pm on BBC One.