Flour roux substitutes
Flour roux substitutes — 5 options, ranked, with the exact amount
Use Cornstarch
Same amount as the flour roux
Similar thickening agent with smooth texture.
The best substitutes for flour roux are cornstarch, arrowroot powder, or tapioca starch.
- Verdict —
- Works
- Best for —
- sauces
Updated 19 Aug 2026 · no sponsored swaps
Every option, one card
Ranked| # | Substitute | Instead of flour roux | Verdict |
|---|---|---|---|
| 1 | Cornstarchsauces | Same amountWorks | Works |
| 2 | Arrowroot powdersauces | Same amountWorks | Works |
| 3 | Tapioca starchsauces | Same amountWorks | Works |
| 4 | Potato starchsauces | Same amountWorks | Works |
| 5 | Rice floursauces | Same amountWorks | Works |
Cornstarch
similar taste and texture
Similar thickening agent with smooth texture.
- Best for
- sauces, gravies, soups, stews
Very similar to flour roux in function and texture.
Arrowroot powder
similar taste and texture
Similar thickening agent with smooth texture.
- Best for
- sauces, gravies, soups, stews
Very similar to flour roux in function and texture.
Tapioca starch
similar taste and texture
Similar thickening agent with smooth texture.
- Best for
- sauces, gravies, soups, stews
Very similar to flour roux in function and texture.
Potato starch
similar taste and texture
Similar thickening agent with smooth texture.
- Best for
- sauces, gravies, soups, stews
Very similar to flour roux in function and texture.
Rice flour
similar taste and texture
Similar thickening agent with smooth texture.
- Best for
- sauces, gravies, soups, stews
Very similar to flour roux in function and texture.
Questions
4 questionsCan I use cornstarch instead of flour roux?
Yes, cornstarch is an excellent substitute for flour roux. It has a very similar thickening function and smooth texture, making it good for the same applications.
What's the difference between flour roux and arrowroot powder?
Flour roux is a cooked flour and fat mixture used as a thickening agent with a smooth texture, while arrowroot powder is a similar thickening agent with a similar smooth texture. Both work well in similar applications but have different cultural origins.
Can I make flour roux at home?
Yes, you can make flour roux at home by properly cooking flour with fat. However, this process requires careful attention to cooking times and can be time-consuming.
How long does flour roux last?
Flour roux can last for 6 months when stored properly in a cool, dry place. However, it's best to use it within 3 months for optimal flavor and texture.
Tips for substituting flour roux
7 tips- Flour roux is best when used in sauces and gravies for its thickening properties
- Store flour roux in a cool, dry place and use within 6 months
- Flour roux pairs well with butter, oil, and other fats
- For sauces, flour roux adds depth and richness to dishes
- Flour roux can be used in both sweet and savory applications
- Add flour roux gradually to avoid overpowering other flavors
- Flour roux works well in marinades, dressings, and sauces