superfine sugar means: This finely granulated sugar also known as caster sugar can be used in cold drinks and meringues. It dissolves fast and easily. You can make it by blending granulated sugar until it becomes powdery in a blender. (in Cooking Dictionary)
What else does superfine sugar mean?
- Superfine sugar, also known as castor sugar or caster sugar, is a finer granulated sugar that dissolves quickly. It’s perfect for sweetening cold beverages and making meringues. Superfine can be replaced with granulated sugar by substituting it for the rest. (in Cooking Dictionary)