Caster sugar, also known as superfine sugar or baker's sugar, is a type of sugar that has a fine granulated texture. It is commonly used in baking and cooking, particularly in recipes where a quick dissolving sugar is desired.
Caster sugar has a smaller granule size compared to granulated sugar but is larger than icing sugar. Its fine texture allows it to dissolve more quickly and evenly in liquids and batters, making it ideal for recipes where a smooth texture is desired.
Caster sugar is often used in baking to make cakes, cookies, meringues, and other desserts. It's especially useful in recipes where sugar needs to be creamed with butter or beaten with eggs, as its fine texture helps create a light and airy texture in the finished product.