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Princess Kate's cooking mistake Prince William disliked: 'I had to learn the hard way'


The Princess of Wales spoke about her baking error while meeting women at an outing to the National Federation of Women's Institute


Princess of Wales gesturing in checked grey dress© Getty
Katie Daly
Katie DalyLifestyle Writer
September 9, 2025
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The Princess of Wales was seen eating cake and chatting with women during an outing to the National Federation of Women's Institute on Thursday, which gave Kate the perfect opportunity to open up about her own baking skills – and she was totally self-deprecating! While Kate tucked into a slice of chocolate chip cookie cake, the Prince of Wales helped himself to a chocolate brownie and a piece of orange and Campari cake before being introduced to the women who made them. 

William was quick to shower the brownie (and the baker) with praise, adding: "And I know my brownies", while his wife quipped knowingly: "William is very fussy about it." The reason for the prince's praise? The fact that the brownie didn't contain nuts. "Never put nuts in a brownie," insisted, which prompted Kate to joke: "I had to learn the hard way." The royal couple has previously opened up about their cooking skills and their dietary preferences, but it seems nuts in brownies are a major no-no, even when lovingly added by his wife.  

HELLO! chief content officer Sophie Vokes-Dudgeon had the privilege of interviewing Prince Harry at last night's WellChild Awards, and you can discover her three takeaways from the interview over on The HELLO! Royal Club by clicking on the button below. After watching the video, you can also take part in a poll asking which of Sophie’s three observations you find the most surprising. 

Catherine, Princess of Wales looks at the cakes on table laughing© Getty

"Many people are not so keen on nuts because of their harder texture that might contrast too much with the softness of desserts such as brownies, as well as changing the intensity of the chocolate taste of the brownie," Lucia Stansbie, registered nutritional therapist, tells us. That said, if you can stomach them, nuts are a beneficial addition to brownies - even if they don't get the royal seal of approval!

Britain's Catherine, Princess of Wales and Britain's Prince William, Prince of Wales visit the National Federation of Women's Institute (WI) in Sunningdale, west of London on September 8, 2025, to commemorate the three-year anniversary of the death of William's late grandmother Queen Elizabeth II. The Prince will meet with members from Sunningdale WI there and across Berkshire to hear about the work of the WI and how it gives opportunities for women to socialise, learn new skills and engage in community projects. (Photo by Alastair Grant / POOL / AFP) (Photo by ALASTAIR GRANT/POOL/AFP via Getty Images)          © POOL/AFP via Getty Images

"Nuts can be a healthy addition to brownies, as they are a source of healthy fats as well as some proteins, which are greatly lacking in desserts such as brownies," Lucia adds. "Nuts can also be a source of vitamins and minerals, with Brazil nuts being a great source of selenium, pistachios being a source of potassium, and walnuts being rich in omega-3 fatty acids." This is something former royal chef, Darren McGrady, would have known when he made brownies for William and Harry. He used to make them with espresso, which he said "supercharged" the boys and would have gotten him in "big trouble" with their nanny if she found out. Though William might not be a fan of Kate's brownies (unless they are nut-free, of course), he's not the only culinary critic in the Wales household.

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Recommended videoYou may also likeWATCH: The Princess of Wales' daily diet
Princess Kate and Mary Berry embracing outside© Getty

Kate critiques William's cooking

The mother-of-three has previously spoken about the meal William made her during the early days of their relationship when they were both students at the University of St Andrews in Scotland. Chatting with British national treasure Mary Berry while filming A Berry Royal Christmas for the BBC, Kate remembered: "He used to cook all sorts of meals. I think that's when he was trying to impress me, Mary. Things like Bolognese sauce, and things like that."

A young Prince William cooking© Pool/Tim Graham Picture Library

However, William has previously spoken about his kitchen disasters while trying to woo his future wife. "When I was trying to impress Kate I was trying to cook these amazing fancy dinners, and what would happen is I would burn something, something would overspill, something would catch on fire and she would be sitting in the background trying to help and basically taking control of the whole situation… so I was quite glad she was there at the time," William recalled.

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