In the kitchen, sugar is much more than just a way to make things sweet. It’s actually a bit of a multitasker, it keeps your cakes moist, helps your cookies get that perfect crunch, and creates those lovely airy bubbles when you’re creaming it with butter. Choosing the right sugar is the best way to control the final texture of your baking.
The Pantry Lineup
Not all sugars are created equal. The size of the crystal and the amount of molasses involved change everything.
- Caster Sugar: This is the gold standard for baking, and my personal preference. Because the grains are so small, they dissolve into the butter much faster when you’re creaming. This gives you a finer, tighter crumb and a more professional feel.
- Brown Sugars (Light, Dark, and Muscovado): These are the moist sugars. They still have molasses in them, which adds a beautiful toffee flavor. Use these when you want a cookie to be chewy or a cake to be fudgy.
- Icing Sugar: This is sugar ground into a fine powder. It dissolves instantly, making it the only choice for smooth buttercreams, glazes, or a snowy dusting over a tart.
Quick Tip: If you need caster sugar and only have regular granulated sugar, pulse it in a blender for a few seconds. DIY caster!
Sugar Substitutes
Run out of the specific sugar the recipe calls for? Here are some substitute suggestions for the Tribe.
| If you need… | And you only have… | The Substitute |
| Caster Sugar | Granulated Sugar | Pulse granulated sugar in a blender until it’s fine but not powdered. |
| Brown Sugar | White Sugar | Mix 1 cup White Sugar + 1 tbsp Molasses (or Treacle). Rub it in with your fingertips. |
| Icing Sugar | Granulated Sugar | Blend 1 cup Sugar + 1 tsp Cornflour on high until it’s a fine powder. |
Sugar FAQs
Q. Why did my brown sugar turn into a rock?
A. Brown sugar goes hard when the moisture evaporates. To stop this, keep it in an airtight jar or container. If it’s already a brick, tuck a slice of fresh bread in the jar for a few hours, the sugar should breathe in the moisture from the bread and soften right up.
Q. Can I just use less sugar to be healthier?
A. Be a bit careful here! Sugar turns into liquid in the oven. If you cut it out too much, your cake might end up dry or tough because that liquid isn’t there to keep the flour soft.
Q. What is ‘Creaming’ exactly?
A. In the bowl, sugar does something purposeful when creaming. Those fine crystals work their way into the butter, creating millions of tiny pockets that hold onto the air. In the oven, those pockets breathe and grow, which is the secret to a cake that’s perfectly light and soft. I touch on this in my Baker’s Glossary over on Baking 101.