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Best Granulated Sugar Substitute in Doughnuts

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

Quick Answer

The best substitute for Granulated Sugar in Doughnuts is Cane Sugar because it has a nearly identical chemical composition and granule size, ensuring similar sweetness, caramelization, and texture in the final product.

Top 5 Granulated Sugar Substitutes for Doughnuts

Substitute Ratio
Cane Sugar (Best) 1:1 by volume
Caster Sugar 1:1 by volume
Turbinado Sugar 1:1 by volume
Brown Sugar (light) 1:1 by volume
Powdered Sugar (confectioners’ sugar) 1:1 by volume, sifted

Detailed Guide: Each Granulated Sugar Substitute in Doughnuts

Cane Sugar (Best Option)

1:1 by volume
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Quick tip: Granule size and sweetness closely match granulated sugar, maintaining dough texture and frying behavior.

Cane sugar is chemically very similar to granulated sugar (sucrose) and has comparable crystallization properties, which are critical for the dough structure and caramelization during frying. This ensures the doughnut dough behaves as expected during mixing and frying.

When substituting, use the same volume as granulated sugar. No adjustments to liquid content or frying time are necessary. Cane sugar dissolves well in dough and contributes to the Maillard reaction, producing the characteristic golden crust.

The final doughnuts will have nearly identical texture, sweetness, and color compared to those made with granulated sugar, making it the most seamless substitute.

Caster Sugar

1:1 by volume
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Quick tip: Finer granules dissolve faster, which can slightly affect dough hydration and crust texture.

Caster sugar is essentially granulated sugar with smaller crystals, allowing it to dissolve more quickly in the dough. This can lead to a slightly smoother dough and a more even caramelization during frying.

Use the same volume as granulated sugar. Because of the finer crystals, monitor dough consistency to avoid overhydration. Frying times remain unchanged.

Doughnuts will have a slightly finer crumb and potentially a more delicate crust, but sweetness and overall texture remain very close to the original.

Turbinado Sugar

1:1 by volume
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Quick tip: Larger crystals and molasses residue add mild caramel notes and a slightly coarser texture.

Turbinado sugar retains some natural molasses, which imparts a subtle caramel flavor and slightly darker color to the doughnuts. The larger crystals dissolve more slowly, which can affect dough hydration and crust texture.

Use equal volume, but ensure thorough mixing to dissolve sugar crystals. Frying times may need slight adjustment to achieve even browning.

The resulting doughnuts have a more complex flavor profile with a slightly coarser crumb and a deeper golden crust compared to granulated sugar.

Brown Sugar (light)

1:1 by volume
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Quick tip: Adds moisture and a mild molasses flavor, which can make doughnuts softer and darker.

Light brown sugar contains molasses, which increases moisture content and acidity in the dough. This can tenderize the dough and enhance browning through Maillard reactions, but may also make the doughnuts slightly denser and moister.

Substitute by volume equally, but reduce other liquids slightly if dough feels too wet. Monitor frying to avoid over-browning.

Doughnuts will have a richer flavor and softer texture with a darker crust, differing from the crispness and neutrality of granulated sugar.

Powdered Sugar (confectioners’ sugar)

1:1 by volume, sifted
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Quick tip: Contains cornstarch which can slightly alter dough texture and reduce crispness.

Powdered sugar is finely ground granulated sugar mixed with a small amount of cornstarch to prevent clumping. The cornstarch can interfere with gluten development and moisture absorption in the dough.

Use the same volume, but sift well to avoid lumps. Expect a slightly softer dough and less crisp crust after frying.

Final doughnuts will be less crisp and may have a slightly different mouthfeel, but sweetness and color remain similar.

Vegan Granulated Sugar Substitutes for Doughnuts

Full Vegan guide →
Cane Sugar
Ratio: 1:1 by volume

Granule size and sweetness closely match granulated sugar, maintaining dough texture and frying behavior.

Caster Sugar
Ratio: 1:1 by volume

Finer granules dissolve faster, which can slightly affect dough hydration and crust texture.

Turbinado Sugar
Ratio: 1:1 by volume

Larger crystals and molasses residue add mild caramel notes and a slightly coarser texture.

Brown Sugar (light)
Ratio: 1:1 by volume

Adds moisture and a mild molasses flavor, which can make doughnuts softer and darker.

Powdered Sugar (confectioners’ sugar)
Ratio: 1:1 by volume, sifted

Contains cornstarch which can slightly alter dough texture and reduce crispness.

Gluten-Free Granulated Sugar Substitutes for Doughnuts

Full Gluten-Free guide →
Cane Sugar
Ratio: 1:1 by volume

Granule size and sweetness closely match granulated sugar, maintaining dough texture and frying behavior.

Caster Sugar
Ratio: 1:1 by volume

Finer granules dissolve faster, which can slightly affect dough hydration and crust texture.

Turbinado Sugar
Ratio: 1:1 by volume

Larger crystals and molasses residue add mild caramel notes and a slightly coarser texture.

Brown Sugar (light)
Ratio: 1:1 by volume

Adds moisture and a mild molasses flavor, which can make doughnuts softer and darker.

Powdered Sugar (confectioners’ sugar)
Ratio: 1:1 by volume, sifted

Contains cornstarch which can slightly alter dough texture and reduce crispness.

Dairy-Free Granulated Sugar Substitutes for Doughnuts

Full Dairy-Free guide →
Cane Sugar
Ratio: 1:1 by volume

Granule size and sweetness closely match granulated sugar, maintaining dough texture and frying behavior.

Caster Sugar
Ratio: 1:1 by volume

Finer granules dissolve faster, which can slightly affect dough hydration and crust texture.

Turbinado Sugar
Ratio: 1:1 by volume

Larger crystals and molasses residue add mild caramel notes and a slightly coarser texture.

Brown Sugar (light)
Ratio: 1:1 by volume

Adds moisture and a mild molasses flavor, which can make doughnuts softer and darker.

Powdered Sugar (confectioners’ sugar)
Ratio: 1:1 by volume, sifted

Contains cornstarch which can slightly alter dough texture and reduce crispness.

❌ What NOT to Use as a Granulated Sugar Substitute in Doughnuts

Honey

Honey is much more hygroscopic and liquid than granulated sugar, which can alter dough hydration and lead to overly moist doughnuts that do not fry properly or develop the expected crisp exterior.

Molasses

Molasses has a strong, distinct flavor and high moisture content that can overpower the delicate doughnut flavor and cause the dough to be too wet, resulting in dense, gummy texture rather than light and airy.

Agave Nectar

Agave nectar is liquid and much sweeter than granulated sugar, requiring significant recipe adjustments; its high fructose content can cause excessive browning and a sticky texture unsuitable for traditional doughnuts.

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