Queen Camilla was keen to avoid a particularly bizarre flavour of ice cream that has taken the internet by storm.
The Queen, who celebrates her 78th birthday this week, decided to pass on the viral sensation as she treated her five grandchildren to an ice cream tasting experience.
Camilla took Lola, Freddy, Eliza, Louis and Gus, her grandchildren from her first marriage, to the swanky The Ice Cream Project by Anya Hindmarch store in Belgravia.
The group participated in a blind tasting session priced at £45 per person, where they sampled various unusual ice cream flavours whilst attempting to identify each one.
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|Queen Camilla refused to try a particularly bizarre ice cream flavour while treating her grandchildren to a day out
Armed with pen and paper, the royal party was challenged to guess the ingredients in an array of unconventional frozen treats.
The tasting featured an eclectic selection of flavours, including olive oil, sriracha hot sauce, and even pickled onion ice cream.
According to a source, "Camilla and her grandchildren had a great time tasting all of the strange flavours."
However, they added that the Queen drew the line at one of the range's most divisive offerings.
The Ice Cream Project by Anya Hindmarch
|Camilla and her grandchildren sampled the bizarre flavours, but the Queen could drew a line at a picked onion themed offering
"Camilla didn't fancy tasting the pickled onion ice cream," the source told The Sun.
The parlour's menu boasts numerous unconventional options, from Irn-Bru and Bird's Custard to Bisto Gravy and Maldon Sea Salt sorbet.
Other distinctive flavours available include McVitie's Milk Chocolate HobNobs, Quaker Oats, Romney's Kendal Mint Cake, and Jacob's Twiglets.
The Queen was particularly impressed by certain flavours, purchasing substantial quantities to take home.
The Ice Cream Project by Anya Hindmarch
|The Queen's annual day trip with her grandchildren took them to the swanky store in London's Belgravia
The source revealed: "Afterwards she bought a lot of treats for her grandchildren and left with a scoop of Club Orange and another of Ovaltine, both for herself."
The outing represents an annual tradition for Camilla, who treats her grandchildren to a special experience each year.
The visit occurred just two days before the Queen's 78th birthday on Thursday.
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|Camilla, enamoured with the Ovaltine and Club Orange flavours, left the store with plenty of extra pots for her family and a few for herself
The Ice Cream Project Blind Tasting Tea, available until September 7, allows visitors to sample 15 different flavours for £45 per person.
The trendy parlour has attracted numerous celebrity visitors, including former England captain Sir David Beckham and Harry Potter actor Rupert Grint.
The Anya Hindmarch store primarily operates as a fashion business, selling quirky bags and accessories alongside its ice cream offerings, including items such as Heinz Baked Beans candles for £95 and After Eight mints tote bags priced at £1,295.
Princess Kate is also known to be a fan of the brand, recently carrying a £950 Neeson Small Square Tote from Anya Hindmarch at Wimbledon last week.