Kate Middleton borrowed this from the Queen for her Mary Berry appearance

(Image credit: 2019 Samir Hussein)

If you haven't seen last night's Mary Berry's Christmas TV special, featuring the Duke and Duchess of Cambridge, then I strongly suggest you call in sick and catch up asap. It is festive TV gold.

The three teamed up to cook a feast including Christmas Meringue roulade, to thank those who will be working on Christmas Day.

I'm not going to tell you something you don't know here, but even when she cooks, Kate Middleton looks impeccable.

A photo posted by on

For the occasion, she donned a red printed dress by Alessandra Rich, of which the Duchess is a fan, having worn a navy polka dot style several times before. Oh, and the good news is that not only is it still available, but it's also in the sale on Net-A-Porter here.

Eagle-eyed viewers also spotted that she borrowed a pair of earrings from the Queen to film the episode.

(Image credit: 1977 Anwar Hussein)

The pair of pearl and diamond drop earrings is a favourite with the Duchess, who has worn them on several occasions, including a trip to the Netherlands.

The Queen herself was first photographed wearing them for her silver jubilee tour in 1977, and wore them as recently as last October.

Penny Goldstone

Penny Goldstone is the Digital Fashion Editor at Marie Claire, covering everything from catwalk trends to royal fashion and the latest high street and Instagram must-haves.

Penny grew up in France and studied languages and law at the Sorbonne Nouvelle University in Paris before moving to the UK for her MA in multimedia journalism at Bournemouth University. She moved to the UK permanently and has never looked back (though she does go back regularly to stock up on cheese and wine).

Although she's always loved fashion - she used to create scrapbooks of her favourite trends and looks, including Sienna Miller and Kate Moss' boho phase - her first job was at MoneySavingExpert.com, sourcing the best deals for everything from restaurants to designer sales.

However she quit after two years to follow her true passion, fashion journalism, and after many years of internships and freelance stints at magazines including Red, Cosmopolitan, Stylist and Good Housekeeping, landed her dream job as the Digital Fashion Editor at Marie Claire UK.

Her favourite part of the job is discovering new brands and meeting designers, and travelling the world to attend events and fashion shows. Seeing her first Chanel runway IRL at Paris Fashion Week was a true pinch-me moment.