by Rick Goldman
Ever run out of potato starch right in the middle of a recipe and wondered what else you could grab from the pantry? You're not alone — and the good news is that several common substitutes for potato starch work just as well (sometimes even better) depending on what you're making. Whether you're thickening a sauce, coating something for frying, or baking a gluten-free treat, the right swap keeps your dish on track. If you enjoy experimenting in the kitchen, you'll find even more helpful ideas on our cooking guides page.
Potato starch is a versatile ingredient prized for its neutral flavor and strong thickening power. It creates a light, crispy coating when frying, produces tender baked goods, and thickens sauces without turning them cloudy. But when you don't have it on hand — or you need an alternative for dietary reasons — knowing which substitute fits your specific recipe makes all the difference.
Below you'll find five reliable substitutes for potato starch, plus practical guidance on how to use each one. We'll cover ratios, common mistakes, and which swap works best for every cooking situation you'll run into.
Contents
Not every substitute behaves the same way. Some thicken more aggressively, others break down under heat, and a few change the texture of your final dish. Here's how to use each of the five best substitutes for potato starch with confidence.
Cornstarch is the most common swap and the one you probably already have in your cabinet. It thickens sauces beautifully and creates a decent frying crust. Use it at a 1:1 ratio — one tablespoon of cornstarch for every tablespoon of potato starch.
One thing to watch: cornstarch gives sauces a slightly glossy, semi-transparent finish. Potato starch produces a clearer result. For most home cooking, you won't notice the difference.
Arrowroot is the closest match to potato starch in terms of results. It's flavorless, produces a clear gel, and works well at lower temperatures. Use it at a 1:1 ratio.
Arrowroot is also a solid choice if you're cooking for someone with corn allergies. It's naturally gluten-free and easy to digest.
Tapioca starch (also called tapioca flour) comes from the cassava root. It creates a chewy, slightly stretchy texture that's perfect for certain baked goods and fillings. Use 2 tablespoons of tapioca starch for every 1 tablespoon of potato starch when thickening.
Pro tip: If your sauce turns stringy or gummy after adding tapioca starch, you've used too much. Start with half the amount and add more gradually.
Rice flour is a pantry staple in many Asian cuisines and doubles as a solid potato starch alternative. It won't produce the same clear finish in sauces, but it excels at frying and baking. Use a 2:1 ratio — two tablespoons of rice flour for one tablespoon of potato starch.
When you have nothing else, regular all-purpose flour gets the job done. It's the least elegant substitute — it clouds sauces, adds a slight wheat flavor, and requires cooking longer to remove the raw taste. But it works. Use 2 tablespoons of flour for every 1 tablespoon of potato starch.
Switching starches seems simple, but a few common errors can wreck your dish. Here's what goes wrong and how to fix it.
This happens when you dump starch directly into hot liquid. Always make a slurry first — mix your starch substitute with an equal amount of cold water until smooth, then whisk it into the hot sauce. This applies to every substitute on this list.
If your sauce stays thin, you likely added the starch too late or didn't bring it to the right temperature. Cornstarch and rice flour need a full boil to activate. Arrowroot and tapioca thicken at lower temperatures but break down if you keep boiling them. Know your starch's behavior.
Overcooking arrowroot or tapioca causes this. Once your sauce thickens, pull it off the heat. Continued boiling breaks down the starch molecules and turns everything gluey. If you're making a dish that simmers for a long time, cornstarch or flour is a better choice — similar logic to picking the right ingredient when making pasta water substitutes for sauces.
If your starch coating doesn't stick, the surface of your protein was too wet or you didn't let the coating rest. Pat your meat dry, dredge it in starch, and let it sit for 5–10 minutes before frying. This trick works whether you're using potato starch, cornstarch, or rice flour.
Warning: Never substitute flour in a recipe that specifically calls for potato starch in gluten-free baking. The gluten in flour completely changes the structure of the final product.
The right substitute depends entirely on what you're cooking. Here's a breakdown by common kitchen task.
Best choice: Cornstarch. It's the most predictable thickener and behaves similarly to potato starch in most sauce applications. For clear sauces or fruit-based glazes, arrowroot gives a more transparent result. When you're building a rich gravy for something like chicken breast halves, either one works perfectly.
Best choice: Rice flour or tapioca starch. Both create a crispier, crunchier crust than potato starch. Rice flour is especially popular in Korean-style fried chicken and tempura. If you've ever tried cooking with cedar planks, you know how important the right surface texture is — the same principle applies to coatings.
Best choice: Tapioca starch or arrowroot. These keep baked goods moist and tender without adding gluten. They work especially well in gluten-free flour blends alongside rice flour and xanthan gum.
Best choice: All-purpose flour or cornstarch. Long-simmering dishes need a starch that holds up over time. Flour-based roux is the classic French technique for a reason — it doesn't break down during extended cooking.
Use this table as a quick reference when you need to decide which substitutes for potato starch to reach for. Each one has strengths and weaknesses depending on the task.
| Substitute | Ratio to Potato Starch | Best For | Avoid When | Gluten-Free |
|---|---|---|---|---|
| Cornstarch | 1:1 | Sauces, gravies, stir-fries | Freezing/reheating | Yes |
| Arrowroot | 1:1 | Clear sauces, fruit fillings | Dairy-based sauces | Yes |
| Tapioca Starch | 2:1 | Frying, pie fillings, baking | Long-simmered dishes | Yes |
| Rice Flour | 2:1 | Frying, GF baking blends | Clear sauce applications | Yes |
| All-Purpose Flour | 2:1 | Roux, stews, thick gravies | Gluten-free recipes | No |
Notice that four out of five options are naturally gluten-free. If you're cooking for someone with celiac disease or gluten sensitivity, you have plenty of good choices.
Instead of scrambling for substitutes last minute, keep a few key starches on hand so you're always prepared. A well-stocked pantry makes cooking smoother — the same principle behind saving money on food through smart planning.
You don't need all five substitutes in your cabinet. Keep these three and you'll cover every situation:
Store them in airtight containers in a cool, dry spot. All three starches last at least two years when stored properly — far longer than most pantry ingredients.
Follow these guidelines and your substitutions will turn out right every time.
Different starches activate at different temperatures. Getting this wrong is the number one reason substitutions fail.
Some starches don't play well with acids or dairy. Arrowroot breaks down in cream sauces and turns slimy. Cornstarch handles both acid and dairy without issues. If your recipe includes citrus juice, vinegar, or tomatoes, stick with cornstarch or tapioca.
For sauces: Add your starch slurry during the last 5–10 minutes of cooking. This gives it time to activate without overcooking.
For frying: Coat your food 5–10 minutes before it goes in the oil. This lets the starch hydrate and stick properly.
For baking: Mix starch substitutes with your dry ingredients first, then combine with wet ingredients. This ensures even distribution throughout the batter — a principle that applies to everything from bread to sugar-free chocolate donuts.
Yes. Cornstarch works well for frying at a 1:1 ratio. It produces a slightly less crispy result than potato starch, but the difference is minimal for most home cooking. For the crunchiest coating, try rice flour or tapioca starch instead.
Arrowroot powder is the closest gluten-free match. It has a neutral flavor, produces clear sauces, and works at a simple 1:1 ratio. Tapioca starch is a close second, especially for baking and frying.
You're either using too much starch or overcooking it. Arrowroot and tapioca are especially prone to breaking down with extended heat. Add less than you think you need, and remove the sauce from heat as soon as it thickens.
You can, and professional bakers do this regularly in gluten-free flour blends. A common combination is tapioca starch plus rice flour. Just keep your total starch amount consistent with the original recipe's potato starch measurement.
Cornstarch, arrowroot, tapioca, and rice flour are all virtually flavorless. All-purpose flour is the only substitute that adds a noticeable taste — a mild wheat flavor that needs 2–3 minutes of cooking to mellow out.
All five substitutes last at least one to two years when stored in airtight containers in a cool, dry place. Rice flour lasts the longest — up to three years. Check for clumping, off smells, or bugs as signs that a starch has gone bad.
 |
 |
 |
 |
About Rick Goldman
Rick Goldman grew up traveling the Pacific Coast and developed an early appreciation for regional and international cuisines through exposure to diverse food cultures from a young age. That culinary curiosity shaped his approach to kitchen gear — he evaluates tools based on how well they perform across different cooking styles, ingredient types, and meal occasions. At BuyKitchenStuff, he covers kitchen equipment reviews, recipe guides, and food-focused buying advice.
Check for FREE Gifts. Or get our Free Cookbooks right now.
Disable the Ad Block to reveal all the recipes. Once done that, click on any button below
|
|
|
|
