Yellowman is a yellow, brittle candy. The traditional version is denser: the hot mass is pulled and stretched several times until it lightens in color and, after cooling, becomes so hard it must be broken with a hammer. Today a porous version, similar to a honeycomb, is also common. In that version, brown sugar and golden syrup are boiled to the hard‑ball stage; at the end baking soda is added, causing the mixture to foam and form bubbles.
The candy is associated with Ballycastle and the Ould Lammas Fair, an annual fair held in the town on the last Monday and Tuesday of August, with origins in the 17th century. At the fair, yellowman is sold in large blocks, broken on the spot and put into small bags, alongside dulse, a red seaweed dried after harvest on the coast.
The connection even appears in a traditional fair song that asks the young man whether he offered dulse and yellowman to his girlfriend. Families in the region made the candy for generations to sell at the fair, and today it also appears in sweet shops and delicatessens across Northern Ireland.