“To celebrate I've created this gorgeous Royal Roulade ❤️. It's the timeless classic of strawberries, sponge and fresh vanilla cream, all rolled up into a real showstopper.
“Perfect for a very special afternoon tea! Big love from all the Olivers x #BabySussex I’ve just posted the recipe on jamieoliver.com or just click my bio. big love xx”
The edible 'gift' follows Jamie's confession that his offer to cater the Duke and Duchess's wedding for free last year were ignored by the royal family.
"I did actually write and say if they want the food sorted I would bring the best of British and American chefs together to do the catering,” Jamie confessed on Channel 4's Sunday Brunch show.
"I didn't get a reply. That is a true story."
This story originally appeared on New Idea.