Social Bite runs social enterprise cafés across Scotland and distributes food and hot drinks to people experiencing homelessness.
She was accompanied by Prince William, and her in-laws, Prince Charles and Duchess Camilla, in a rare royal appearance of the foursome.
The trip was announced by Kensington Palace, the royal residence of the Cambridges, in a statement released on Instagram on Tuesday.
William and Kate recently spoke about the Australian bushfire crisis in a statement they issued on the Australia Day celebrated on Sunday, January 26.
The custom gown featured a sleeveless, high-neck, gold-foil-feathered bodice and a voluminous graphic skirt.
Earlier in the day, the duchess visited the closed Downview Prison in Sutton, Surrey, one of 12 women-only institutions in the country.
The broadcast has been allegedly edited so that there were minimal reaction shots of the royal couple on Brad Pitt's joke about Megxit.
A leaked email sent to local authorities reminding them to fly the British flag for Andrew's 60th birthday on Wednesday, February 19.
Both the royal couples will visit the Defence Medical Rehabilitation Centre Stanford Hall in Stanford on Soar on Tuesday, February 11.
The Duke and Duchess of Cambridge visited local organisations and businesses in South Wales, on Tuesday, in a joint royal engagement.
The Duchess of Cambridge, Kate Middleton, says she felt bad after watching the documentary.
Carole Middleton is spending a lot of time at Anmer Hall to support the Cambridges.
The three royal children appear in a video made in support of Children's Mental Health Week, which runs from February 3 to 9.
The initiative aims to encourage young people to share their mental struggles.
Prince William and Kate Middleton make an impressive arrival at the BAFTAs 2020 red carpet.
The actor was not able to attend the award show due to unknown "family obligations," but made sure Margot Robbie delivered his speech.
Kate Middleton dazzles in hibiscus design gown on 73rd British Academy Film and Television Awards.
Princess Beatrice's wedding date and location hasn't been announced yet.
Kate Middleton works 18 hours a day after Prince Harry and Meghan Markle's exit and is "further apart" from her sister-in-law.
Kate Middleton continue to promote her recently launched landmark survey 5 Big Questions.
The Duchess of Cambridge joins a creative workshop at Children's hospital.
The Duke and Duchess of Cambridge meet with Holocaust survivors at Central Hall in London on International Holocaust Remembrance Day.