A six-year-old slice of cake from the royal wedding of Prince William and Kate Middleton will be auctioned next month, although it may not offer a good recipe for financial investment.
The tinned slice of fruitcake is expected to sell for thousands, after another slice was sold for around $10,000 in 2014.
The latest slice will go under the hammer through Chiswick Auctions, which has predicted a more modest price guide of between £800 and £1500 ($A2400).
The Duke and Duchess of Cambridge wed in April 2011 in London’s Westminster Abbey.
One million people lined the streets between the Abbey and Buckingham Palace for the wedding, which was a public holiday in Britain. Tens of millions of people watched the ceremony on television and online.
Their eight-tier cake was designed by Fiona Cairns and took five weeks to create. It was the centrepiece of the reception in Buckingham Palace’s picture gallery room.
The cake was cut into 650 slices which were handed out to guests as a souvenir in cream and gilt commemorative tins.
The slice of cake for auction also comes with a card, with the Royal Crest printed in gilt and well wishes from Prince Charles and Camilla, the Duchess of Cornwall.
“With best wishes from TRH [Their Royal Highness] The Prince of Wales and The Duchess of Cornwall in celebration of the wedding of TRH The Duke and Duchess of Cambridge,” the card says.
In 2014, a slice from the same cake sold at Julien’s Auctions in California for $US7500 ($A9500).
In 2008, the same auction house sold a piece of cake from the wedding of Prince William’s parents, Prince Charles and Princess Diana. It sold for $US6000 ($A7500).
A slice of cake from Queen Elizabeth’s 1947 wedding also went under the hammer in 2015 and sold for a mere £500 ($A800).
The royal family has been holidaying in Balmoral as the 20th anniversary of Princess Diana’s death looms later this month.
The slice of cake from Prince William and Kate’s wedding will be sold at the Printed Books and Manuscripts Chiswick Auctions in London on September 27.