A Great British Bake Off winner has revealed the two ingredients he will "definitely" be adding to the King's 'Coronation quiche'.
It comes after King Charles and Camilla shared the recipe for the open-baked savoury tart - which features spinach, broad beans and tarragon - on the Royal Family’s official Twitter account.
The recipe is by royal head chef Mark Flanagan and was chosen by Charles and Camilla in collaboration with him.
While some love it and some hate it, 2019 Bake Off winner David Atherton thinks quiche "has a bad reputation" - admitting a good one needs to meet some key criteria.
David, co-host of the Sticky Bun Boys podcast, said: "As with most things, it’s all in the baking. If you can achieve a fragile crispy pastry shell, a creamy filling with a little wobble, a rich flavour of cheese and enlivened with herbs then you’re onto a winner, and a dish that can stand up as a centrepiece for any celebration.
"If, however you end up with solid scrambled egg with a soggy bottom it’s always going to be a flop."
However, on the filling for the King's celebratory quiche, David, who now writes cookery books for young bakers, said he would "definitely" be looking to jazz it up a little.
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He added: "I like the look of the filling as its fresh and green, but I will definitely be adding some asparagus and smoked salmon, or at the very least some blue cheese.
"A quiche is a very British spring dish and is great for celebrating whatever is seasonal, and honouring some of the amazing British cheeses."
On Buckingham Palace's website, the savoury dish is described as: "A deep quiche with a crisp, light pastry case and delicate flavours of Spinach, Broad Beans and fresh Tarragon. Eat hot or cold with a green salad and boiled new potatoes - perfect for a Coronation Big Lunch!"
Former Buckingham Palace chef Darren McGrady said the King’s choice came as no surprise because Charles loves anything with eggs and cheese.
Mr McGrady, who worked for the late Queen for 15 years, said he had made quiche for Charles many times.
“It’s no surprise that the King Charles III has shared Coronation quiche to celebrate his Coronation,” he tweeted.
“His mother, The Queen loved chocolate, but The King loves anything with eggs and cheese.
“Made this for him many times... especially with salmon he’d caught in the river Dee.”
Buckingham Palace said the quiche was chosen because it worked as a sharing dish, can be served hot or cold, suits a wide variety of dietary requirements and can be easily adapted to suit different tastes.
The Palace also said it tasted delicious and had the benefit of not being too complicated and not requiring costly or hard-to-source ingredients.
A Palace chef, dressed in a white uniform, embroidered with the late Queen’s EIIR cypher, and a chef’s hat, was shown making the quiche in a video posted on social media.