Best Substitutes for Icing Sugar

Pulse 1 cup granulated sugar in a food processor for 2-3 minutes until powder-fine. Add 1 tablespoon cornstarch and pulse 30 seconds more. The cornstarch prevents clumping and gives the same texture as commercial icing sugar. Let the dust settle for 2 minutes before opening the processor to avoid a sugar cloud. Sift through a fine mesh strainer if you need ultra-smooth results for delicate work.

Caster sugar dissolves faster than regular granulated but slower than icing sugar. It works in buttercream and glazes but creates a slightly grittier texture. The crystals are about half the size of granulated sugar but still 10 times larger than icing sugar. Beat buttercream for an extra 3-4 minutes to fully dissolve the crystals. For glazes, heat gently while stirring to help dissolution.

Powdered erythritol has 70% of the sweetness of icing sugar but the same fine texture. It contains no cornstarch, so frostings may be less stable in humid conditions. Erythritol creates a cooling sensation on the tongue, which works well in mint or citrus frostings but feels odd in chocolate. It doesn't caramelize or brown, so baked goods stay pale. Mix with 1 teaspoon cornstarch per cup for better stability.

Grind coconut sugar in a spice grinder for 1-2 minutes to create a powder. It never gets as fine as commercial icing sugar due to its fiber content and natural moisture. The result has a light caramel flavor and tan color that darkens white frostings to beige. It clumps more easily than regular icing sugar, so sift before using and add 1 teaspoon arrowroot powder per cup for anti-caking.

Blend granulated sugar with cornstarch in a high-speed blender for 60-90 seconds. The result is coarser than commercial icing sugar but works for most applications. Stop and scrape sides every 30 seconds to ensure even grinding. The texture will be slightly gritty in delicate frostings but acceptable in glazes and simple buttercreams. Sift through a fine mesh to remove any large pieces.

Grind brown sugar in a food processor for 2-3 minutes to break down the molasses clumps. Add 1 tablespoon cornstarch per cup for flow. The molasses prevents it from getting as fine as white icing sugar, and the moisture content makes it clump faster. It creates caramel-colored frostings with rich flavor. Works best in applications where the color and flavor complement the recipe.

Use stevia blends that contain bulking agents like erythritol or inulin to match icing sugar's volume. Pure stevia powder is 200-300 times sweeter than sugar, so you need tiny amounts that won't provide structure. The blends typically match sugar's sweetness at 1:4 ratio. They don't dissolve the same way, so beat frostings longer and expect a slightly different texture. Some brands have bitter aftertastes.

Honey powder is dehydrated honey with added starch to keep it flowing. It's less sweet than icing sugar and adds floral notes to frostings. The powder reconstitutes when mixed with fats or liquids, creating a honey flavor that's more subtle than liquid honey. It absorbs moisture from the air quickly, so work fast and store finished items covered. The natural enzymes can affect texture over time.