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What the Princess of Wales 'had to learn the hard way' with Prince William


Find out what the heir to the throne is "fussy about"


SUNNINGDALE, ENGLAND - SEPTEMBER 8: Catherine, Princess of Wales and Prince William, Prince of Wales visit the National Federation of Women's Institute (WI) to commemorate the three-year anniversary of the death of Queen Elizabeth II on September 8, 2025 in Sunningdale, England. (Photo by Alastair Grant - WPA Pool/Getty Images)© Getty Images
SEPTEMBER 9, 2025 3:00 PM EDT

Prince William knows what he likes! As it turns out, the Prince of Wales is a bit of a brownie connoisseur, which he revealed during a joint engagement with his wife, the Princess of Wales, on Monday.

While Their Royal Highnesses enjoyed baked goods at the National Federation of Women's Institute (WI) in Sunningdale, Prince William praised a brownie that he was eating. "I know my brownies," he said in a video shared on X.

Britain's Catherine, Princess of Wales and Britain's Prince William, Prince of Wales speak with members during a visit to 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)          © ALASTAIR GRANT/POOL/AFP via Getty Images

Catherine then revealed, "William is very fussy about it." The heir to the throne, 43, agreed, acknowledging he's "very fussy about brownies."

William also noted to "never put nuts in a brownie," prompting Catherine to laugh and say, "I had to learn the hard way!"

The Prince and Princess visited the National Federation of Women's Institute on Sept. 8 to commemorate the third anniversary of Queen Elizabeth's passing. "Three years ago my grandmother passed away, I know she was a big part of the WI and she used to talk about it a lot, so this is a huge honour for me," Prince William said (via the BBC). He admitted, "I can't quite believe it's three years already."

SUNNINGDALE, ENGLAND - SEPTEMBER 8: Catherine, Princess of Wales and Prince William, Prince of Wales choose a cake as they visit the National Federation of Women's Institute (WI) to commemorate the three-year anniversary of the death of Queen Elizabeth II on September 8, 2025 in Sunningdale, England. (Photo by Alastair Grant - WPA Pool/Getty Images)© Alastair Grant - WPA Pool/Getty Images

Alongside pictures from the outing, the Waleses' social media accounts wrote: "The Women’s Institute holds a special connection to Her Late Majesty, who was a member for 80 years, joining in 1943 and serving as President of the Sandringham WI from 2003 until her death in 2022. Very special opportunity to hear from members today about the importance of The Late Queen’s involvement in the organisation and meet those who met with her during her reign."

During the engagement on Monday, the royal dad of three opened up about his sons, Prince George, 12, and Prince Louis, 7. William described his youngest child as "a character" and "a very good boy." He also shared that Prince Louis likes to "wind his brother and sister [Princess Charlotte] up."

The Prince additionally revealed that when his firstborn "is behind closed doors, it's a completely different ball game." William pointed out that Prince George "just knows how to behave" and that Louis doesn't.

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