What Is Caster Sugar Substitute?

How Long Does Caster Sugar Last bunkertips
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In baking and cooking, sugar is a common ingredient used to add sweetness to various dishes. Caster sugar, also known as castor sugar, is a type of fine sugar that is often used in recipes that require a quick and even dissolving sugar. However, if you don’t have caster sugar on hand or prefer a healthier alternative, there are several substitutes you can use to achieve similar results. In this article, we will explore some of the best caster sugar substitutes.

1. Granulated Sugar

The most readily available substitute for caster sugar is granulated sugar. Granulated sugar has slightly larger crystals compared to caster sugar, but it can still be used in most recipes. Keep in mind that granulated sugar may take slightly longer to dissolve, so you might need to mix it for a bit longer or adjust the recipe accordingly.

2. Powdered Sugar

If you’re looking for a sugar substitute that dissolves quickly and easily, powdered sugar is a great option. Powdered sugar, also known as confectioners’ sugar or icing sugar, has been ground into a fine powder and often contains a small amount of cornstarch to prevent clumping. It works well in recipes that require a smooth texture, such as frostings, glazes, and whipped creams.

3. Superfine Sugar

Superfine sugar, also known as bar sugar or ultrafine sugar, is another suitable substitute for caster sugar. As the name suggests, superfine sugar has finer crystals than granulated sugar but is not as fine as powdered sugar. It dissolves quickly and evenly, making it a good choice for recipes that require a smooth texture, like meringues and custards.

4. Brown Sugar

For recipes where the flavor of brown sugar is desired, it can be used as a substitute for caster sugar. Brown sugar has a richer flavor due to the presence of molasses. Keep in mind that the texture of brown sugar is coarser than caster sugar, so it may not dissolve as quickly. Adjusting the mixing time or using a blender to process the brown sugar into a finer texture can help overcome this issue.

5. Honey

If you’re looking for a natural alternative to caster sugar, honey is an excellent option. Honey adds a distinct flavor to recipes and is sweeter than sugar, so you’ll need to use less of it. It also adds moisture to baked goods, resulting in a softer texture. Keep in mind that honey has a lower melting point than sugar, so you may need to adjust the baking temperature and time accordingly.


While caster sugar is commonly used in baking and cooking, there are several suitable alternatives available. Whether you choose to use granulated sugar, powdered sugar, superfine sugar, brown sugar, or honey, each substitute can provide similar results depending on the recipe. Experimentation and adjusting the quantities may be required to achieve the desired taste and texture. So, the next time you find yourself without caster sugar, don’t worry – there are plenty of substitutes to choose from!