5 Best Cornstarch Substitutes for Doughnuts
5 tested options with exact ratios, science-backed explanations, and tips for success.
Best Cornstarch Substitute in Doughnuts
The best substitute for Cornstarch in Doughnuts is Potato Starch because it provides a similar light, crisp texture and excellent moisture retention, which is crucial for achieving the ideal doughnut crumb and exterior.
Top 5 Cornstarch Substitutes for Doughnuts
| Substitute | Ratio | ||
|---|---|---|---|
| ★ Potato Starch Best | 1:1 (replace cornstarch by volume) | Potato starch yields a similarly crisp and tender texture in doughnuts without altering flavor. | VeganGluten-FreeDairy-FreeFat-FreeNut-Free |
| Rice Flour | Use 1 tablespoon rice flour plus 1 tablespoon cornstarch per 1 tablespoon cornstarch | Rice flour adds crispness but can make doughnuts slightly gritty if overused. | VeganGluten-FreeDairy-FreeFat-FreeNut-Free |
| Wheat Flour | Use 2 tablespoons wheat flour per 1 tablespoon cornstarch | Wheat flour will add gluten, resulting in a chewier doughnut with less crispness. | VeganDairy-FreeNut-Free |
| Arrowroot Powder | 1:1 (replace cornstarch by volume) | Arrowroot can produce a slightly gummy texture if overheated during frying. | VeganGluten-FreeDairy-FreeFat-FreeNut-Free |
| Tapioca Starch | 1:1 (replace cornstarch by volume) | Tapioca starch can make doughnuts overly chewy and gummy, which is undesirable. | VeganGluten-FreeDairy-FreeFat-FreeNut-Free |
Deeper Dive: Using Cornstarch Substitutes in Doughnuts
What Actually Happens in Practice?
Using potato starch instead of cornstarch in doughnuts typically yields a lighter, airier crumb with a slightly crisper exterior due to its higher amylopectin content. Potato starch also absorbs moisture differently, so the dough may require a slight reduction in liquid to prevent excess stickiness. The flavor remains neutral, but the doughnuts often brown more evenly at moderate frying temperatures (350°F to 375°F).
Common Mistakes to Avoid
A frequent error is substituting potato starch at a 1:1 ratio without adjusting for its greater moisture retention, which can result in overly wet dough that fails to hold shape during frying. Another mistake is frying at too high a temperature, causing the starch to gelatinize prematurely and produce a gummy texture. Additionally, neglecting to sift potato starch can lead to uneven incorporation and inconsistent dough texture.
How Results Can Vary
Results can vary significantly with altitude since potato starch gelatinizes at a slightly lower temperature than cornstarch, requiring careful temperature control to avoid undercooked centers. Different brands of potato starch may have variable granule sizes affecting moisture absorption and crispness. Using convection ovens or air fryers instead of traditional deep frying alters the starch’s behavior, often necessitating adjustments in cooking time and temperature to maintain the desired texture.
Edge Cases & Exceptions
In gluten-free doughnut recipes that rely heavily on starches for structure, potato starch may need to be combined with other flours like tapioca or rice flour to prevent excessive chewiness. For large-scale commercial frying, the heat retention of the oil can affect how potato starch-based doughnuts cook, sometimes requiring longer frying times or oil temperature adjustments. Additionally, in recipes incorporating acidic ingredients like buttermilk, potato starch can break down faster, compromising the dough’s integrity if not balanced properly.
Detailed Guide: Each Cornstarch Substitute in Doughnuts
Potato Starch
Potato starch is a fine, white starch extracted from potatoes that gelatinizes at a similar temperature to cornstarch, allowing it to create a light, crisp crust on fried doughnuts. It also helps retain moisture, preventing dryness in the crumb.
When using potato starch, ensure it is fresh and not exposed to moisture before frying, as it can clump. Mix it thoroughly with the dry ingredients for even distribution.
Compared to cornstarch, potato starch produces a slightly more tender crumb and a crisp exterior that holds up well during frying, making it the closest functional equivalent.
Rice Flour
Rice flour is a fine, gluten-free flour that contributes to crispness in fried goods by absorbing moisture and creating a dry crust. It partially mimics cornstarch’s effect but lacks the same gelatinization properties.
To avoid a gritty texture, combine rice flour with a small amount of wheat flour or another starch if gluten is acceptable. Monitor frying temperature carefully to prevent over-browning.
Doughnuts made with rice flour tend to be crisper but may lose some tenderness and lightness compared to cornstarch.
Wheat Flour
Wheat flour contains gluten proteins that develop elasticity and chewiness, which is different from the tenderizing effect of cornstarch. It thickens batters but does not create the same light, crisp crust.
Use wheat flour only if gluten is not a concern and expect a denser texture. Adjust frying time to prevent overcooking due to the heavier batter.
The final doughnuts will be more bread-like and less delicate in texture compared to those made with cornstarch.
Arrowroot Powder
Arrowroot powder is a starch derived from tropical plants that thickens and gels similarly to cornstarch. However, it is less stable at high frying temperatures and can break down, causing a gummy or sticky texture on doughnuts.
To minimize this, fry at moderate temperatures and avoid prolonged frying times. Use arrowroot only if other starches are unavailable.
Doughnuts may have a less crisp exterior and a slightly sticky mouthfeel compared to those made with cornstarch.
Tapioca Starch
Tapioca starch is a highly elastic starch that forms a gel-like texture when heated. While it can thicken batters, its elasticity can cause doughnuts to have a gummy or chewy texture rather than the desired lightness.
If used, combine with other starches to balance texture and avoid excessive chewiness. Monitor frying closely to prevent overcooking.
The final product will be less crisp and more elastic than doughnuts made with cornstarch.
Vegan Cornstarch Substitutes for Doughnuts
Full Vegan guide →Potato starch yields a similarly crisp and tender texture in doughnuts without altering flavor.
Rice flour adds crispness but can make doughnuts slightly gritty if overused.
Wheat flour will add gluten, resulting in a chewier doughnut with less crispness.
Arrowroot can produce a slightly gummy texture if overheated during frying.
Tapioca starch can make doughnuts overly chewy and gummy, which is undesirable.
Gluten-Free Cornstarch Substitutes for Doughnuts
Full Gluten-Free guide →Potato starch yields a similarly crisp and tender texture in doughnuts without altering flavor.
Rice flour adds crispness but can make doughnuts slightly gritty if overused.
Arrowroot can produce a slightly gummy texture if overheated during frying.
Tapioca starch can make doughnuts overly chewy and gummy, which is undesirable.
Dairy-Free Cornstarch Substitutes for Doughnuts
Full Dairy-Free guide →Potato starch yields a similarly crisp and tender texture in doughnuts without altering flavor.
Rice flour adds crispness but can make doughnuts slightly gritty if overused.
Wheat flour will add gluten, resulting in a chewier doughnut with less crispness.
Arrowroot can produce a slightly gummy texture if overheated during frying.
Tapioca starch can make doughnuts overly chewy and gummy, which is undesirable.
What NOT to Use as a Cornstarch Substitute in Doughnuts
All-purpose flour contains gluten and has a much heavier texture than cornstarch, which can make doughnuts dense and chewy rather than light and tender. It also does not provide the same crispness to the fried exterior.
Sources & Methodology
Cross-referenced against USDA FoodData Central nutritional data and peer-reviewed culinary science publications. Source URLs verified as of the sources_verified_date.
Other Ingredient Substitutes in Doughnuts
Need to substitute other ingredients in Doughnuts?
All substitutes for Doughnuts →Cornstarch Substitutes in Other Recipes
View all Cornstarch substitutes →In-Depth Guides
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