Cornstarch Substitute: 3 Best Replacements

Cornstarch thickens sauces and pie fillings to a glossy finish — 1 tbsp thickens about 1 cup of liquid. Whether you ran out mid-recipe or need a dietary swap, here are the best substitutes for cornstarch, with exact amounts.

1

All-purpose flour

Use: 2 tbsp for 1 tbsp cornstarch

Cook a minute longer to lose the raw taste.

Less glossy finish.

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2

Arrowroot

Use: 1 tbsp for 1 tbsp cornstarch

Swap 1:1.

Even glossier; great for fruit pies.

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3

Potato starch

Use: 1 tbsp for 1 tbsp cornstarch

Swap 1:1.

Do not boil hard or it thins.

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Frequently asked questions

What is the best substitute for cornstarch?

The best all-round substitute is All-purpose flour: use 2 tbsp for 1 tbsp cornstarch. Cook a minute longer to lose the raw taste. Less glossy finish.

Can I use arrowroot instead of cornstarch?

Yes. Use 1 tbsp for 1 tbsp cornstarch. Swap 1:1. Even glossier; great for fruit pies.

What is a vegan substitute for cornstarch?

Vegan options: All-purpose flour, Arrowroot, Potato starch.

How much potato starch equals 1 tbsp cornstarch?

Use 1 tbsp. Swap 1:1.

More ingredient substitutes

Missing something else? Search all 48 ingredients in the substitute finder.