LONDON - Meghan Markle, together with her fiance Prince Harry, has chosen a fellow London-based American, pastry chef Claire Ptak, to make a lemon elderflower cake for their upcoming wedding, the couple announced Wednesday.

"Prince Harry and Ms. Markle have asked Ms. Ptak to create a lemon elderflower cake to incorporate the bright flavors of spring," Kensington Palace, the prince's official residence in London, said in a statement.

"It will be covered with buttercream and decorated with fresh flowers."

The pair were "very much looking forward to sharing this cake with their wedding guests," it added.

California-raised Ptak is a food writer and stylist, recipe developer and consultant, as well as the owner of the small but celebrated Violet bakery in east London.

She started the business as a stall on trendy Broadway Market, before opening her cafe nearby in 2010 with a focus on using high quality, seasonal and organic ingredients.

Ptak had previously worked as a pastry chef under renowned chef Alice Waters at her Chez Panisse restaurant in Berkeley, California. - AFP