Aberffraw biscuit is a traditional shortbread that’s believed to be Britain’s oldest biscuit. These cookies are made with a simple combination of high-quality butter, flour, and sugar. The rich and sweet shortbread is instantly recognizable due to its visual appearance – it’s shaped like a scallop shell.

It is believed that the origin of the scallop shape dates back to the 13th century, when Welsh pilgrims went on their pilgrimage to Santiago de Compostela in Spain, and they began pressing shortbread with scallop shells as an homage to their journey.