The Duke of Edinburgh ruled out a "bake off" as he brought a coronation quiche, baked by Buckingham Palace staff, to Westminster Abbey on Tuesday.
Prince Edward, 59, joined Great British Bake Off judge Dame Prue Leith and faith leaders at a special Big Lunch at the London church.
The coronation quiche, made with spinach, broad bean and tarragon, was given Dame Prue's stamp of approval, with the chef and TV presenter praising the dish as "absolutely delicious".
As the Duke cut Dame Prue a slice of the quiche, he joked: "We're not going to do a bake off".
She replied: "It better taste as good as it sounds."
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See what else the pair had to say during their funny exchange in the clip below…
Hosted by the Dean of Westminster, the outdoor event was organised to inspire people to organise their own celebratory events, showing how food can bring together people of all faiths and backgrounds.
Tens of thousands of street parties are expected to be held during the coronation weekend, with people encouraged to come together across the country for the Coronation Big Lunch on Sunday May 7.
The quiche recipe was chosen by the King and Queen Consort because it works as a sharing dish, can be served hot or cold, suits a wide range of dietary requirements and can be easily adapted to suit different tastes.
The palace also said it had the benefit of not being too complicated nor requiring costly or hard-to-source ingredients.
It comes after the BBC confirmed the first performers for the star-studded coronation concert, which will take place at Windsor Castle in the evening on Sunday 7 May.
Take That, Katy Perry and Lionel Richie will be among the big names to take to the stage.
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