The Princess of Wales promised to send her recipe for plum jam to young gardeners during her visit to Pontypridd, in south Wales ahead of St David's Day on 1 March.
Kate, 43, heard how young volunteers at a community garden in Wales were growing their own plums and making them into jam. She promised: "I'll send you my recipe so you can try it," before revealing that she is learning to forage in Norfolk, with her three children left impressed by a "huge" puffball mushroom she had found near their home.
"The children thought it was fascinating," revealed the royal.
The Princess and her husband, Prince William travelled by train to Pontypridd, before receiving a warm welcome as they stepped out for their first joint engagements since the February half-term break.
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The visit was delayed by almost an hour due to train disruptions, with the couple sharing a video of their arrival at Cardiff rail station, to the surprise of fellow commuters.
Their first port of call was Pontypridd Market, which has been at the heart of the community since 1805, where the royal couple went head-to-head as they tried their hand at making a batch of traditional Welsh cakes – and the future king thanked TV cook Mary Berry for his baking success.
WATCH: William and Kate receive warm welcome in Pontypridd
During their time in Pontypridd, the Prince and Princess also met with local people affected by the severe flooding caused by Storm Bert and Storm Darragh, which hit the region in the space of just two weeks in late 2024.
William and Kate stopped at The Welsh Cake Shop, a popular retailer in the town's market that has been a focal point for shoppers and traders for generations.
The shop owned by Theresa Conner, 46, is well known for its Welsh cakes and the other traditional Welsh tea-time treat of bara brith or speckled bread.
The pair usually can't help but engage in a bit of friendly competition during their joint outings.
Kate looked impressed at her husband's efforts and said: "Those are so good. How did you do that?"
With flour stuck to the sleeve of his maroon sweater, William smiled and said: "Well I don’t know, my stunning baker skills, Mary Berry taught me everything I need to know."
The couple appeared with TV baking queen Marry Berry on A Berry Royal Christmas show, back in 2019.
Kate wore one of her favourite red Alexander McQueen coats for her trip to Pontypridd. The bespoke double-breasted jacket features black buttons and pocket detailing.
She teamed it with a chocolate brown rollneck, a tartan skirt and long suede boots.
Meanwhile, William looked smart in a burgundy jumper over a blue shirt with navy trousers and a brown blazer.
For their second engagement, the Prince and Princess paid a visit to Meadow Street Community Garden and Woodland to hear about the site's impact and how volunteers worked to restore it in the wake of the storms.
Kate swapped her red McQueen coat for a cropped tweed Ralph Lauren jacket, she first wore to Cheltenham races in 2007.
She also sported a checked wool midi skirt by Gucci.
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