The different sugars
Q: What is the difference between caster sugar and white sugar?
A: ‘Caster’ sugar is basically the same as ‘white’ sugar (sometimes known as white granulated sugar), but the crystals are finer and they will dissolve more readily in your baking. Your cakes and biscuits will have a slightly finer texture when using caster sugar while if you use white sugar, your cakes will have a slightly coarser texture and your biscuits more crunch. It’s also good to note that icing sugar is just a finer version of caster sugar, with the crystals being ground to a fine powder.