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Best Powdered Sugar Substitute in Cream Sauce

5 tested options with exact ratios, science-backed explanations, and tips for success.

Quick Answer

The best substitute for Powdered Sugar in Cream Sauce is a blend of granulated sugar and cornstarch because it replicates the fine texture and anti-caking properties of powdered sugar, ensuring smoothness and proper sweetness without graininess.

Top 5 Powdered Sugar Substitutes for Cream Sauce

Substitute Ratio
Granulated Sugar and Cornstarch Blend (Best) 1 cup granulated sugar plus 1 tablespoon cornstarch to replace 1 cup powdered sugar
Caster Sugar (Superfine Sugar) 1 cup caster sugar to replace 1 cup powdered sugar
Confectioners' Sugar Substitute (DIY Blend of Granulated Sugar and Arrowroot Powder) 1 cup granulated sugar plus 1 tablespoon arrowroot powder to replace 1 cup powdered sugar
Stevia Blend (Powdered Stevia with Maltodextrin) 1 teaspoon powdered stevia blend to replace 1 cup powdered sugar
Erythritol Powder 1 cup erythritol powder to replace 1 cup powdered sugar

Detailed Guide: Each Powdered Sugar Substitute in Cream Sauce

Granulated Sugar and Cornstarch Blend (Best Option)

1 cup granulated sugar plus 1 tablespoon cornstarch to replace 1 cup powdered sugar
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Quick tip: This blend mimics the fine texture and anti-caking properties of powdered sugar, preventing graininess in the sauce.

Powdered sugar is essentially granulated sugar ground finely with a small amount of cornstarch to prevent clumping. In cream sauces, smoothness is critical, so blending granulated sugar with cornstarch replicates both sweetness and texture. The cornstarch also helps stabilize the sauce by absorbing excess moisture.

For best results, pulse the granulated sugar and cornstarch in a food processor until very fine before adding to the sauce. This ensures quick dissolution and prevents gritty texture.

Compared to pure powdered sugar, this substitute maintains the sauce’s smoothness and sweetness without introducing additional flavors or moisture, preserving the integrity of the cream sauce.

Caster Sugar (Superfine Sugar)

1 cup caster sugar to replace 1 cup powdered sugar
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Quick tip: Caster sugar dissolves more quickly than granulated sugar but lacks anti-caking agents, which may slightly affect texture.

Caster sugar has finer crystals than granulated sugar, allowing it to dissolve more readily in liquids like cream sauces. This helps maintain a smoother texture compared to regular granulated sugar.

However, caster sugar does not contain cornstarch, so there is a higher risk of slight graininess or clumping if not fully dissolved. Stirring thoroughly and warming the sauce gently can help mitigate this.

The final sauce will be close in sweetness and texture to one made with powdered sugar but may lack the exact silky mouthfeel due to absence of cornstarch.

Confectioners' Sugar Substitute (DIY Blend of Granulated Sugar and Arrowroot Powder)

1 cup granulated sugar plus 1 tablespoon arrowroot powder to replace 1 cup powdered sugar
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Quick tip: Arrowroot powder acts as a natural anti-caking agent and thickener, similar to cornstarch, suitable for those avoiding corn products.

Arrowroot powder is a fine starch that can substitute cornstarch in preventing clumping and improving texture. When combined with granulated sugar ground finely, it mimics powdered sugar’s properties.

To use, blend granulated sugar and arrowroot powder in a blender until powdery. This mixture dissolves well in cream sauces and helps maintain smoothness.

The sauce will have a similar sweetness and texture, with a slightly different thickening profile due to arrowroot’s gelatinization properties, which can make the sauce a bit more glossy.

Stevia Blend (Powdered Stevia with Maltodextrin)

1 teaspoon powdered stevia blend to replace 1 cup powdered sugar
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Quick tip: Stevia blends provide sweetness without sugar but may impart a slight aftertaste and lack bulk, affecting sauce texture.

Powdered stevia blends often contain maltodextrin or erythritol to provide bulk and mimic sugar’s texture. While they can sweeten the cream sauce effectively, they do not contribute to the sauce’s body or mouthfeel in the same way sugar does.

Because cream sauces rely on sugar not only for sweetness but also for texture and slight thickening, using stevia blends may result in a thinner or less smooth sauce. Careful balancing with other thickeners may be necessary.

The final product will be lower in calories and sugar but may have a different mouthfeel and a subtle aftertaste distinctive to stevia.

Erythritol Powder

1 cup erythritol powder to replace 1 cup powdered sugar
Vegan Gluten-Free Dairy-Free Fat-Free Nut-Free
Quick tip: Erythritol powder dissolves well and provides bulk but can cause cooling sensations and may crystallize upon cooling.

Erythritol is a sugar alcohol that can be powdered to mimic powdered sugar’s texture. It dissolves quickly in liquids and adds bulk and sweetness without calories.

In cream sauces, erythritol can maintain smoothness if fully dissolved, but it tends to crystallize when cooled, which can affect texture. The cooling effect may also alter the perceived flavor.

The sauce will be less sweet than with sugar and may have a slightly different mouthfeel, so it’s best used when a low-calorie option is desired and the sauce is served warm.

Vegan Powdered Sugar Substitutes for Cream Sauce

Full Vegan guide →
Granulated Sugar and Cornstarch Blend
Ratio: 1 cup granulated sugar plus 1 tablespoon cornstarch to replace 1 cup powdered sugar

This blend mimics the fine texture and anti-caking properties of powdered sugar, preventing graininess in the sauce.

Caster Sugar (Superfine Sugar)
Ratio: 1 cup caster sugar to replace 1 cup powdered sugar

Caster sugar dissolves more quickly than granulated sugar but lacks anti-caking agents, which may slightly affect texture.

Confectioners' Sugar Substitute (DIY Blend of Granulated Sugar and Arrowroot Powder)
Ratio: 1 cup granulated sugar plus 1 tablespoon arrowroot powder to replace 1 cup powdered sugar

Arrowroot powder acts as a natural anti-caking agent and thickener, similar to cornstarch, suitable for those avoiding corn products.

Stevia Blend (Powdered Stevia with Maltodextrin)
Ratio: 1 teaspoon powdered stevia blend to replace 1 cup powdered sugar

Stevia blends provide sweetness without sugar but may impart a slight aftertaste and lack bulk, affecting sauce texture.

Erythritol Powder
Ratio: 1 cup erythritol powder to replace 1 cup powdered sugar

Erythritol powder dissolves well and provides bulk but can cause cooling sensations and may crystallize upon cooling.

Gluten-Free Powdered Sugar Substitutes for Cream Sauce

Full Gluten-Free guide →
Granulated Sugar and Cornstarch Blend
Ratio: 1 cup granulated sugar plus 1 tablespoon cornstarch to replace 1 cup powdered sugar

This blend mimics the fine texture and anti-caking properties of powdered sugar, preventing graininess in the sauce.

Caster Sugar (Superfine Sugar)
Ratio: 1 cup caster sugar to replace 1 cup powdered sugar

Caster sugar dissolves more quickly than granulated sugar but lacks anti-caking agents, which may slightly affect texture.

Confectioners' Sugar Substitute (DIY Blend of Granulated Sugar and Arrowroot Powder)
Ratio: 1 cup granulated sugar plus 1 tablespoon arrowroot powder to replace 1 cup powdered sugar

Arrowroot powder acts as a natural anti-caking agent and thickener, similar to cornstarch, suitable for those avoiding corn products.

Stevia Blend (Powdered Stevia with Maltodextrin)
Ratio: 1 teaspoon powdered stevia blend to replace 1 cup powdered sugar

Stevia blends provide sweetness without sugar but may impart a slight aftertaste and lack bulk, affecting sauce texture.

Erythritol Powder
Ratio: 1 cup erythritol powder to replace 1 cup powdered sugar

Erythritol powder dissolves well and provides bulk but can cause cooling sensations and may crystallize upon cooling.

Dairy-Free Powdered Sugar Substitutes for Cream Sauce

Full Dairy-Free guide →
Granulated Sugar and Cornstarch Blend
Ratio: 1 cup granulated sugar plus 1 tablespoon cornstarch to replace 1 cup powdered sugar

This blend mimics the fine texture and anti-caking properties of powdered sugar, preventing graininess in the sauce.

Caster Sugar (Superfine Sugar)
Ratio: 1 cup caster sugar to replace 1 cup powdered sugar

Caster sugar dissolves more quickly than granulated sugar but lacks anti-caking agents, which may slightly affect texture.

Confectioners' Sugar Substitute (DIY Blend of Granulated Sugar and Arrowroot Powder)
Ratio: 1 cup granulated sugar plus 1 tablespoon arrowroot powder to replace 1 cup powdered sugar

Arrowroot powder acts as a natural anti-caking agent and thickener, similar to cornstarch, suitable for those avoiding corn products.

Stevia Blend (Powdered Stevia with Maltodextrin)
Ratio: 1 teaspoon powdered stevia blend to replace 1 cup powdered sugar

Stevia blends provide sweetness without sugar but may impart a slight aftertaste and lack bulk, affecting sauce texture.

Erythritol Powder
Ratio: 1 cup erythritol powder to replace 1 cup powdered sugar

Erythritol powder dissolves well and provides bulk but can cause cooling sensations and may crystallize upon cooling.

❌ What NOT to Use as a Powdered Sugar Substitute in Cream Sauce

Brown Sugar

Brown sugar introduces moisture and a molasses flavor that can alter the delicate balance and color of a cream sauce, making it unsuitable for maintaining the intended creamy texture and neutral sweetness.

Honey

Honey is liquid and much sweeter than powdered sugar, which can disrupt the sauce's consistency and sweetness balance, leading to a thinner sauce and potential separation.

Raw Sugar (Turbinado or Demerara)

Raw sugar crystals are too coarse and do not dissolve well in cream sauces, resulting in a gritty texture that undermines the smoothness essential to the sauce.

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