Out of Confectioners sugar, one case
Confectioners sugar substitute for frosting
5 options, ranked, with the exact amount
Use Homemade powdered sugar
Per 1 cup confectioners sugar
1 cup granulated sugar + 1 tsp cornstarch
The best confectioners sugar substitute for frosting is homemade powdered sugar (blend 1 cup granulated sugar with 1 tsp cornstarch). Other excellent options include powdered erythritol, powdered monk fruit, or powdered coconut sugar. These provide the same fine texture and smooth consistency needed for good frostings.
- Best for —
- buttercream frosting
Every option, one card
Ranked| # | Substitute | Instead of 1 cup confectioners sugar |
|---|---|---|
| 1 | Homemade powdered sugarbuttercream frosting | 1 cup granulated sugar + 1 tsp cornstarch |
| 2 | Powdered erythritolketo frosting | Same amount |
| 3 | Powdered monk fruit sweetenernatural frosting | Same amount |
| 4 | Powdered coconut sugarnatural frosting | Same amount |
| 5 | Powdered steviadiabetic frosting | ¼ cup powdered stevia per 1 cup confectioners |
Homemade powdered sugar
identical to confectioners sugar
Make your own powdered sugar by blending granulated sugar with cornstarch in a food processor until it becomes a fine powder. This creates the exact same texture and sweetness as store-bought confectioners sugar.
- Best for
- buttercream frosting, cream cheese frosting, royal icing, glazes, all frosting types
- Texture
- identical fine powder texture
Best substitute for frosting - blend in food processor until very fine powder, cornstarch prevents clumping and provides smooth texture.
Powdered erythritol
similar sweetness with slight cooling effect
Powdered erythritol that measures exactly like confectioners sugar but has zero calories and carbs. Good for creating smooth, sweet frostings without the sugar content.
- Best for
- keto frosting, diabetic-friendly frosting, low-carb buttercream, sugar-free cream cheese frosting
- Texture
- identical fine powder texture
Zero calories, zero carbs, no aftertaste, may have slight cooling effect, good for keto frostings.
Powdered monk fruit sweetener
sweet with natural flavor
Natural powdered sweetener made from monk fruit that provides the same fine texture as confectioners sugar. Check the sweetness level of your brand and adjust accordingly.
- Best for
- natural frosting, keto frosting, diabetic-friendly recipes, clean eating frostings
- Texture
- identical fine powder texture
Natural sweetener, zero calories, may need to adjust amount based on brand sweetness.
Powdered coconut sugar
sweet with caramel notes
Ground coconut sugar that provides the same fine texture as confectioners sugar but with natural caramel notes. Good for frostings where you want a slightly richer flavor.
- Best for
- natural frosting, caramel-flavored frosting, brown butter frosting, spice cake frosting
- Texture
- identical fine powder texture
Natural alternative with caramel notes, slightly darker color, may affect frosting color.
Powdered stevia
very sweet with slight aftertaste
Natural powdered sweetener that's much sweeter than sugar. Use only ¼ the amount of confectioners sugar and mix thoroughly to avoid concentrated sweet spots.
- Best for
- diabetic frosting, low-calorie frosting, sugar-free cream cheese frosting, keto buttercream
- Texture
- identical fine powder texture
Much sweeter than sugar - use ¼ the amount, may have slight aftertaste, mix well.
How it behaves in this recipe
Frosting requires confectioners sugar because it dissolves instantly in fats and liquids, creating a smooth, spreadable consistency. The fine powder texture is essential for preventing grittiness and ensuring the frosting spreads evenly. Any substitute must maintain this fine powder texture to work properly in frosting applications.
Tips for substituting confectioners sugar
10 tips- For smooth frosting, always sift your powdered sugar substitute before using to remove any lumps
- When making homemade powdered sugar, blend for at least 1-2 minutes to ensure it's fine enough for frosting
- For buttercream frosting, add the powdered sugar substitute gradually while mixing to prevent clumping
- If using erythritol or monk fruit, the frosting may be slightly less sweet - taste and adjust as needed
- For cream cheese frosting, powdered substitutes work best when the cream cheese is at room temperature
- When using stevia, mix it with a small amount of liquid first to help distribute it evenly in the frosting
- For royal icing, homemade powdered sugar works exactly like store-bought confectioners sugar
- If your frosting is too thick, add liquid gradually; if too thin, add more powdered sugar substitute
- Store frosted items in the refrigerator if using sugar-free substitutes as they may not set as firmly
- For the smoothest texture, use a stand mixer or electric hand mixer when making frosting with substitutes
Notes on confectioners sugar
- Use a combination of powdered erythritol and a small amount of powdered stevia for balanced sweetness
- Mix powdered coconut sugar with powdered erythritol for natural sweetness with less sugar content
- For chocolate frosting, the darker color of coconut sugar actually enhances the appearance
- Consider using powdered allulose as another keto-friendly option for frosting
- For a completely sugar-free option, use powdered erythritol with a touch of vanilla extract for flavor
Questions
5 questionsCan I use regular granulated sugar instead of confectioners sugar for frosting?
No, granulated sugar won't dissolve properly in frosting and will create a gritty texture. You need the fine powder texture of confectioners sugar or its substitutes for smooth frosting.
Will sugar-free substitutes make my frosting taste different?
Sugar-free substitutes like erythritol and monk fruit may have a slight cooling effect or different sweetness profile, but they create the same smooth texture. Taste and adjust as needed.
Can I use honey or maple syrup instead of confectioners sugar for frosting?
Liquid sweeteners like honey or maple syrup will make your frosting too thin and runny. You need powdered substitutes to maintain the proper frosting consistency.
How do I make sure my homemade powdered sugar is fine enough for frosting?
Blend the granulated sugar and cornstarch in a high-speed blender or food processor for at least 1-2 minutes until it's very fine. It should feel like talcum powder when rubbed between your fingers.
Will using coconut sugar make my frosting brown?
Yes, coconut sugar has a natural caramel color that will make your frosting slightly darker. This works well for chocolate or spice frostings but may not be ideal for bright white frostings.