/ 6 oz caster sugar

Caster sugar, also known as superfine sugar or castor sugar, is a granulated sucrose sweetener with exceptionally fine crystals, finer than standard granulated sugar but coarser than powdered sugar. Produced through crystallization of sugar cane or sugar beet juice, caster sugar undergoes additional processing to achieve its characteristic fine texture, typically with grain sizes between 0.3–0.5 mm. The refinement process creates uniform, small crystals that dissolve rapidly in liquid and incorporate smoothly into batters and doughs, making it the preferred sweetener in baking and confectionery applications where texture and dissolution speed are critical.

Caster sugar is the standard sweetener in British and European baking, prized for its rapid dissolution in cold liquids and its ability to create smooth, fine-crumbed cakes and light, airy meringues. It is essential in meringue production, where fine crystals incorporate air more efficiently than coarser sugars, and in mousse and cream preparations where its dissolving properties ensure a silken texture. Beyond baking, caster sugar is used in fruit preserves, cocktails, and fruit syrups where quick dissolution is advantageous. Its fine texture also makes it suitable for sprinkling over desserts and pastries.