What Is the Best Substitute for Powdered Sugar?
Powdered sugar, also called confectioners’ sugar or icing sugar, is valued for its fine texture and quick dissolving ability.
If you are out of it, the best substitute for powdered sugar depends on whether you need it for frosting, glazes, dusting, or baking.
Some alternatives work almost exactly like powdered sugar, while others are better for specific recipes.
The key is matching sweetness, texture, and moisture control so the final result stays smooth and stable.
What Powdered Sugar Does in Recipes
Before choosing a replacement, it helps to know why powdered sugar is used.
It is finely ground granulated sugar, usually mixed with a small amount of cornstarch to prevent clumping.
That fine texture makes it useful in recipes where regular sugar would feel gritty.
- Frosting and icing: Adds sweetness and structure
- Glazes: Dissolves quickly for a smooth finish
- Whipped toppings: Blends easily without crunch
- Dusting: Creates a decorative, snowy coating
Best Substitute for Powdered Sugar in Most Recipes
The most practical substitute for powdered sugar is a homemade version made from granulated sugar and cornstarch.
This option is closest in texture and behavior, especially for baking and frosting.
Homemade powdered sugar
Use:
- 1 cup granulated sugar
- 1 tablespoon cornstarch
Blend the ingredients in a high-speed blender, food processor, or spice grinder until the sugar becomes very fine and fluffy.
Sift if needed to remove larger grains.
This substitute works well because cornstarch helps absorb some moisture and prevents caking, similar to commercial powdered sugar.
It is ideal for buttercream, glaze, and quick dessert toppings.
Can You Use Granulated Sugar Instead?
Granulated sugar can work in some recipes, but it is not a direct one-to-one replacement for powdered sugar.
It does not dissolve as easily, so it may leave a gritty texture in frosting or icing.
Use granulated sugar only when the recipe allows heat or extra mixing, such as:
- Simple syrups
- Cooked glazes
- Cake batters with strong mixing
- Recipes where texture is less important
If you need a smooth finish, granulated sugar is usually not the best substitute for powdered sugar on its own.
Top Substitutes for Powdered Sugar by Use
1. Homemade powdered sugar
Best overall for frosting, glaze, and baking.
It is the closest match in sweetness and texture.
2. Superfine sugar
Superfine sugar, also called caster sugar, has smaller crystals than standard granulated sugar.
It dissolves faster, making it useful in whipped cream, meringues, and light glazes.
It still will not fully replace powdered sugar in thick frostings, but it performs better than regular sugar.
3. Coconut sugar, ground finely
Finely ground coconut sugar can be used when color and flavor are less important than sweetness.
It has a caramel-like taste and a tan color, which changes the appearance of white frostings and icing.
It is better in baked goods than in decorative toppings.
4. Maple sugar
Maple sugar provides a distinct maple flavor and can be ground into a fine powder.
It is useful in glazes, dry rubs, and some desserts, but it is expensive and strongly flavored.
Use it when the maple note complements the recipe.
5. Erithritol powdered sweetener
Powdered erythritol is a popular sugar-free substitute for powdered sugar in keto and low-carb recipes.
It behaves similarly in frostings and glazes, though some brands can have a cooling aftertaste.
Choose a finely powdered version for the smoothest result.
6. Powdered monk fruit blend
Monk fruit sweetener blends often include erythritol and are sold in powdered form.
These work well in sugar-free icing and whipped toppings.
Check the ingredient list, since blends vary in sweetness and texture.
Which Substitute Works Best for Frosting?
For frosting, the best substitute for powdered sugar is usually homemade powdered sugar or a commercial powdered sugar alternative such as powdered erythritol.
Frosting depends on fine texture and stability, so substitutes must dissolve cleanly and avoid graininess.
If your recipe is a buttercream, use a finely ground substitute and sift it first.
If the frosting feels too thin, add a little more of the dry ingredient.
If it feels too thick, add a small amount of milk, cream, or another liquid called for in the recipe.
Which Substitute Works Best for Glaze?
For glazes, homemade powdered sugar is again the strongest choice.
It dissolves fast and creates a smooth, glossy finish for donuts, cookies, quick breads, and cakes.
If you do not have a blender or processor, superfine sugar can work in a cooked glaze, especially if the mixture is gently heated.
For uncooked glaze, a truly fine powder is important to prevent visible crystals and a sandy mouthfeel.
Which Substitute Works Best for Dusting?
For dusting desserts, the goal is appearance, so the replacement should be fine, dry, and light in color.
The best substitute for powdered sugar in this case is homemade powdered sugar, since it creates the same snowy look.
If you need a sugar-free option, powdered erythritol or a monk fruit blend can work.
Keep in mind that some alternatives look slightly different and may not melt the same way on warm pastries.
How to Make a Substitute for Powdered Sugar Without Cornstarch
If you do not have cornstarch, you can still make a workable substitute using only granulated sugar.
The result will be slightly less resistant to clumping, but it can still function in many recipes.
Try this approach:
- Blend 1 cup granulated sugar until very fine
- Sift it well before using
- Store any extra in an airtight container
You can also use arrowroot powder instead of cornstarch if you want a similar anti-caking effect.
This is helpful for people avoiding corn-based ingredients.
Substitutes to Avoid for Sensitive Recipes
Some sugar alternatives are not good substitutes for powdered sugar in every situation.
Avoid using coarse sweeteners in recipes that rely on a silky texture.
- Turbinado sugar: Too coarse for smooth icing
- Brown sugar: Adds moisture and molasses flavor
- Honey or syrup: Changes liquid balance dramatically
- Stevia granules: Not similar in texture or bulk
These may work in some baked goods, but they are not reliable substitutes for frostings, glazes, or dusting.
How to Choose the Right Substitute for Powdered Sugar
Pick the replacement based on the recipe’s purpose and texture requirements.
- For buttercream: Homemade powdered sugar or powdered erythritol
- For glaze: Homemade powdered sugar or superfine sugar in a cooked glaze
- For dusting: Homemade powdered sugar or a powdered sugar-free blend
- For baking: Superfine sugar or ground fine sugar alternatives
- For low-carb desserts: Powdered monk fruit blend or powdered erythritol
If the recipe is delicate, fine texture matters more than sweetness alone.
When in doubt, grind and sift the substitute before using it.
Storage Tips for Homemade Powdered Sugar Substitute
Homemade powdered sugar can absorb moisture, so store it properly to keep it usable.
Place it in a sealed container in a cool, dry pantry.
- Label the container with the ingredients
- Keep it away from steam and humidity
- Sift before using if it clumps
- Make small batches for best freshness
This is especially important if you plan to use the substitute for frosting or other smooth desserts, since moisture can affect texture quickly.
Quick Reference: Best Substitute for Powdered Sugar by Situation
- Best overall: Homemade powdered sugar with cornstarch
- Best sugar-free option: Powdered erythritol or monk fruit blend
- Best for light sweetness in drinks or whipped recipes: Superfine sugar
- Best for flavor-specific recipes: Maple sugar or coconut sugar, finely ground
- Best for smooth frosting and icing: Finely ground homemade powdered sugar
With the right substitute, you can keep your recipe’s texture, sweetness, and appearance close to the original without a trip to the store.
