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Best Cornstarch Substitute in Chili

The best substitute for Cornstarch in Chili is Arrowroot Powder because it provides a similar glossy finish and thickening power without altering the flavor, and it works well in acidic environments like tomato-based chili.

Last Reviewed March 25, 2026
Reviewer IngredientSwap Culinary Team
Methodology Data-driven analysis & culinary science review

Top 5 Cornstarch Substitutes for Chili

Substitute Ratio
Arrowroot Powder Best 1 tablespoon per 1 tablespoon cornstarch Provides a clear, glossy finish and thickens quickly without altering flavor.
VeganGluten-FreeDairy-FreeFat-FreeNut-Free
Rice Flour 2 tablespoons per 1 tablespoon cornstarch Thickens well but can produce a slightly grainier texture and less glossy finish.
VeganGluten-FreeDairy-FreeFat-FreeNut-Free
Ground Flaxseed (mixed with water) 1 tablespoon ground flaxseed mixed with 3 tablespoons water per 1 tablespoon cornstarch Adds thickness and slight mucilaginous texture, with a mild nutty flavor.
VeganGluten-FreeDairy-FreeFat-FreeNut-Free
Instant Potato Flakes 1 tablespoon per 1 tablespoon cornstarch Thickens quickly but can slightly cloud the chili and add a mild potato flavor.
VeganGluten-FreeDairy-FreeFat-FreeNut-Free
Chia Seeds (ground and soaked) 1 tablespoon ground chia seeds soaked in 3 tablespoons water per 1 tablespoon cornstarch Creates a gel that thickens but adds a gritty texture and slight earthiness.
VeganGluten-FreeDairy-FreeFat-FreeNut-Free

Deeper Dive: Using Cornstarch Substitutes in Chili

What Actually Happens in Practice?

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Common Mistakes to Avoid

How Results Can Vary

Edge Cases & Exceptions

Detailed Guide: Each Cornstarch Substitute in Chili

Arrowroot Powder

VeganGluten-FreeDairy-FreeFat-FreeNut-Free
1 tablespoon per 1 tablespoon cornstarch
Quick tip: Provides a clear, glossy finish and thickens quickly without altering flavor.

Arrowroot powder is a starch extracted from tropical plants and has excellent thickening properties similar to cornstarch. It works well in acidic dishes like chili because it remains stable and does not break down easily in tomato-based sauces.

To use arrowroot powder effectively, mix it with a small amount of cold water to create a slurry before adding it to the chili near the end of cooking to avoid overcooking and losing thickening power. Avoid boiling after adding as it can degrade.

Compared to cornstarch, arrowroot yields a slightly more translucent and glossy sauce with a smooth texture, enhancing the visual appeal and mouthfeel of chili without changing the flavor profile.

Rice Flour

VeganGluten-FreeDairy-FreeFat-FreeNut-Free
2 tablespoons per 1 tablespoon cornstarch
Quick tip: Thickens well but can produce a slightly grainier texture and less glossy finish.

Rice flour is a finely milled flour that can absorb liquid and thicken sauces effectively. It is less potent than cornstarch, hence the higher ratio, and it does not break down in acidic environments, making it suitable for chili.

When using rice flour, it is best to mix it with cold water to avoid lumps and add it gradually to the chili while stirring. It requires a slightly longer cooking time to fully thicken and lose any raw flour taste.

The final chili will have a more opaque and slightly grainy texture compared to cornstarch, but the flavor remains neutral, making it a good gluten-free alternative.

Ground Flaxseed (mixed with water)

VeganGluten-FreeDairy-FreeFat-FreeNut-Free
1 tablespoon ground flaxseed mixed with 3 tablespoons water per 1 tablespoon cornstarch
Quick tip: Adds thickness and slight mucilaginous texture, with a mild nutty flavor.

Ground flaxseed forms a gel-like consistency when mixed with water due to its soluble fiber content, which can mimic the thickening effect of cornstarch. This makes it a natural thickener that also adds nutritional benefits.

To use, mix ground flaxseed with water and let it sit for 5-10 minutes before stirring into the chili. Because of its texture, it is best added towards the end of cooking to preserve its thickening properties.

The chili will have a slightly thicker, more viscous texture with a subtle nutty flavor, which may complement the spices but can alter the traditional chili mouthfeel.

Instant Potato Flakes

VeganGluten-FreeDairy-FreeFat-FreeNut-Free
1 tablespoon per 1 tablespoon cornstarch
Quick tip: Thickens quickly but can slightly cloud the chili and add a mild potato flavor.

Instant potato flakes absorb liquid rapidly and swell, providing thickening power in stews and sauces. They are stable in acidic environments, making them useful for tomato-based chili.

Add potato flakes gradually while stirring to avoid clumping. Because they absorb liquid, you may need to adjust the overall liquid content of the chili.

The final texture is thicker but less smooth than cornstarch-thickened chili, with a subtle potato taste that may or may not complement the chili depending on the recipe.

Chia Seeds (ground and soaked)

VeganGluten-FreeDairy-FreeFat-FreeNut-Free
1 tablespoon ground chia seeds soaked in 3 tablespoons water per 1 tablespoon cornstarch
Quick tip: Creates a gel that thickens but adds a gritty texture and slight earthiness.

Chia seeds absorb water and form a gel due to their high soluble fiber content, which can act as a thickener. Ground chia seeds disperse more evenly and reduce the gritty texture.

Prepare by grinding the seeds and soaking them in water before adding to the chili near the end of cooking. Avoid prolonged cooking after addition to maintain thickening properties.

The chili will have a thicker consistency but may have a slightly gritty texture and earthy flavor, which can alter the traditional chili experience.

Vegan Cornstarch Substitutes for Chili

Full Vegan guide →
Arrowroot Powder
Ratio: 1 tablespoon per 1 tablespoon cornstarch

Provides a clear, glossy finish and thickens quickly without altering flavor.

Rice Flour
Ratio: 2 tablespoons per 1 tablespoon cornstarch

Thickens well but can produce a slightly grainier texture and less glossy finish.

Ground Flaxseed (mixed with water)
Ratio: 1 tablespoon ground flaxseed mixed with 3 tablespoons water per 1 tablespoon cornstarch

Adds thickness and slight mucilaginous texture, with a mild nutty flavor.

Instant Potato Flakes
Ratio: 1 tablespoon per 1 tablespoon cornstarch

Thickens quickly but can slightly cloud the chili and add a mild potato flavor.

Chia Seeds (ground and soaked)
Ratio: 1 tablespoon ground chia seeds soaked in 3 tablespoons water per 1 tablespoon cornstarch

Creates a gel that thickens but adds a gritty texture and slight earthiness.

Gluten-Free Cornstarch Substitutes for Chili

Full Gluten-Free guide →
Arrowroot Powder
Ratio: 1 tablespoon per 1 tablespoon cornstarch

Provides a clear, glossy finish and thickens quickly without altering flavor.

Rice Flour
Ratio: 2 tablespoons per 1 tablespoon cornstarch

Thickens well but can produce a slightly grainier texture and less glossy finish.

Ground Flaxseed (mixed with water)
Ratio: 1 tablespoon ground flaxseed mixed with 3 tablespoons water per 1 tablespoon cornstarch

Adds thickness and slight mucilaginous texture, with a mild nutty flavor.

Instant Potato Flakes
Ratio: 1 tablespoon per 1 tablespoon cornstarch

Thickens quickly but can slightly cloud the chili and add a mild potato flavor.

Chia Seeds (ground and soaked)
Ratio: 1 tablespoon ground chia seeds soaked in 3 tablespoons water per 1 tablespoon cornstarch

Creates a gel that thickens but adds a gritty texture and slight earthiness.

Dairy-Free Cornstarch Substitutes for Chili

Full Dairy-Free guide →
Arrowroot Powder
Ratio: 1 tablespoon per 1 tablespoon cornstarch

Provides a clear, glossy finish and thickens quickly without altering flavor.

Rice Flour
Ratio: 2 tablespoons per 1 tablespoon cornstarch

Thickens well but can produce a slightly grainier texture and less glossy finish.

Ground Flaxseed (mixed with water)
Ratio: 1 tablespoon ground flaxseed mixed with 3 tablespoons water per 1 tablespoon cornstarch

Adds thickness and slight mucilaginous texture, with a mild nutty flavor.

Instant Potato Flakes
Ratio: 1 tablespoon per 1 tablespoon cornstarch

Thickens quickly but can slightly cloud the chili and add a mild potato flavor.

Chia Seeds (ground and soaked)
Ratio: 1 tablespoon ground chia seeds soaked in 3 tablespoons water per 1 tablespoon cornstarch

Creates a gel that thickens but adds a gritty texture and slight earthiness.

What NOT to Use as a Cornstarch Substitute in Chili

✗ Flour

Flour can thicken chili but imparts a cloudy appearance and a slightly pasty texture, which detracts from the desired smoothness and clarity in chili. Additionally, it requires longer cooking to remove the raw flour taste, which can affect the overall flavor balance.

✗ Potato Starch

Potato starch tends to break down and lose thickening power when exposed to acidic ingredients like tomatoes in chili, resulting in a thinner consistency over time. It also can give a slightly grainy texture if not handled carefully.

✗ Tapioca Starch

Tapioca starch can create a gummy or overly elastic texture in chili, which is undesirable in a hearty stew. Its thickening effect can also diminish with prolonged simmering common in chili recipes.

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.

Need to substitute other ingredients in Chili?

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Cornstarch Substitutes in Other Recipes

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