Great British Bake Off winner Nadiya Hussain presents the Queen with her 90th birthday cake

Great British Bake Off winner Nadiya Hussain has presented the Queen with her birthday cake on the monarch's 90th birthday.

Hussain - who confessed she was "super nervous" about the prospect of baking for the longest-reigning monarch - prepared a three-tier orange drizzle.

"Which bit does one cut?" the Queen is heard asking the mother-of-two.

Her Majesty then proceeds to cut the cake before the crowd - and Nadiya - launch into an impromptu rendition of happy birthday.

The 31-year-old told ITV News that she chose to make an orange drizzle cake following the success of her lemon drizzle on the hit BBC One show.

The baker added: "You've got to feel some pressure when it's the Queen, right? Every time I tried to ignore the fact I was doing it for the Queen, my husband would very conveniently remind me - 'Hey, hey, you're slacking. It's for the Queen. Get up, you can't be lying down'."

It appears that Prince Philip may be a fan of the baking show.

"The Queen said 'Oh, she won the baking show' and he said 'Of course I know she won the baking show' - I think they were having a bit of a conversation."

And what did the Queen think of Nadiya's efforts?