What is caster sugar?

by Cookthink

Caster (or castor) sugar is superfine refined sugar. That makes it finer than granulated sugar but not as fine as confectiones sugar. Caster sugar dissolves easily and so is used to give baked goods (especially meringues) a lighter texture. If you don't have any or can't find caster sugar, you can pulse regular granulated sugar in a food processor to help break down the grains. Recipe: Rhubarb Syllabub (Cook & Eat) Recipe: Meringue Cookies (Cookthink) Related Article: Meet the sugars