Aberffraw Biscuits — The Shell-Shaped Sweet from Anglesey

Delicate, buttery, and absolutely steeped in legend, Aberffraw biscuits (also known as Aberffraw cakes) are one of Wales’s most beautiful and historic bakes. 

These charming, shell-shaped shortbread biscuits hail from Anglesey, the windswept island off the north-west coast of Wales.

Their unique design, rich flavour, and storied origins make them a standout treat for anyone exploring the heritage of Welsh baking.

A Biscuit with a Story

According to legends, the Aberffraw biscuit was first created in the 9th century in the royal court of Aberffraw, once a seat of power in Gwynedd. It’s said that a Welsh king, inspired by the scallop shells on a pilgrimage to Santiago de Compostela, asked for a cake in the same shape.

The result? A shell-imprinted shortbread that combined noble flair with the humble beauty of traditional ingredients.

Simple Ingredients, Lasting Delight

At its heart, the Aberffraw biscuit is a classic shortbread — just flour, sugar, and butter — but shaped using a real shell or a mould to create its distinctive ridged appearance. Some modern bakers add lemon zest or almond for a subtle twist.

These biscuits are perfect with a cup of tea, adding an elegant touch to any afternoon spread.

Anglesey & Beyond: A Regional Revival

While the original recipe was largely forgotten over time, the biscuit has enjoyed a revival in recent years, thanks in part to artisan Welsh bakeries. You’ll now find variations throughout North Wales and beyond:

Traditional: pure shortbread, often stamped with a real scallop shell

Flavoured: lemon, almond, or vanilla

Decorated: dipped in chocolate or dusted with sugar

Bakers across the UK now embrace this design, but it remains a uniquely Welsh culinary gem.

Recipe: Aberffraw Biscuits

Ingredients:

175g plain flour

50g caster sugar

125g unsalted butter, softened

(Optional) ½ tsp vanilla or almond extract

(Optional) zest of ½ lemon

Method:

Preheat oven to 180°C (160°C fan) / 350°F / Gas Mark 4.

In a bowl, cream together the butter and sugar until light and fluffy.

Mix in the flour (and any optional flavourings) to form a soft dough.

Roll into balls and press each one gently into a clean scallop shell mould or use a fork for a ridged pattern.

Place on a lined baking tray and chill for 10 minutes.

Bake for 12–15 minutes until pale golden.

Cool on a wire rack and dust with caster sugar if desired.

A Taste of Medieval Wales

More than just a biscuit, the Aberffraw is a symbol of Welsh history and identity — linking today’s teatime tables with the courts of ancient kings. Whether you’re baking them for a special occasion or just as a sweet nod to your roots, these little shells offer a big taste of heritage.

Next up: Welsh Mead — The Honeyed Elixir of the Celts