The best xanthan gum replacements depend on what you're making

Cornstarch, arrowroot powder, and psyllium husk work as direct substitutes in most recipes. For baking, ground flaxseed mixed with water creates a similar binding effect. In sauces and gravies, flour or potato starch thicken just as well. The right choice depends on whether you need a thickener for liquids, a binder for dry ingredients, or a texture improver for baked goods — and whether you have dietary restrictions.

Xanthan gum does three things: it thickens liquids, binds dry ingredients together, and improves texture in baked goods. Most replacements handle one or two of these jobs well. Knowing which job matters most in your recipe helps you pick the right substitute without trial and error.

Key Takeaways

  • Cornstarch and arrowroot powder replace xanthan gum 1-to-1 in sauces, gravies, and salad dressings.
  • Ground flaxseed or chia seed mixed with water creates a binder for baked goods, using about 1 tablespoon mixed with 3 tablespoons water per teaspoon of xanthan gum.
  • Psyllium husk works as a 1-to-1 replacement in most recipes and is gluten-free, though it adds a slightly grainy texture.
  • Egg whites, gelatin, and guar gum each work for specific purposes — egg whites for structure, gelatin for setting, guar gum for thickening.
  • In gluten-free baking, you may need to combine two substitutes to match xanthan gum's full effect.

Cornstarch and arrowroot powder for sauces and gravies

Both cornstarch and arrowroot powder thicken liquids the same way xanthan gum does. Use them 1-to-1 in sauces, gravies, soups, and salad dressings. Mix the powder with a small amount of cold water first to prevent lumps, then stir into your hot liquid. The mixture will thicken as it heats.

Cornstarch is cheaper and sits in most kitchen cabinets already. Arrowroot powder is slightly more neutral in flavor and works better in acidic sauces (like tomato-based ones) because cornstarch can break down over time in acidic conditions. Neither works well in baked goods — they don't provide the same binding or texture improvement that xanthan gum does.

Ground flaxseed and chia seed for baked goods

When you need xanthan gum's binding power in cookies, cakes, or bread, ground flaxseed is the closest match. Mix 1 tablespoon of ground flaxseed with 3 tablespoons of water and let it sit for 5 minutes until it becomes gel-like. This replaces 1 teaspoon of xanthan gum. Add the gel to your dry ingredients as you would the xanthan gum.

Chia seed works the same way — 1 tablespoon chia seed mixed with 3 tablespoons water replaces 1 teaspoon xanthan gum. Both add a slight nuttiness to the flavor and a barely noticeable texture change. Flaxseed is more common in baking and usually cheaper. Neither works as a thickener for liquids, so save these for baked goods only.

Psyllium husk for a one-to-one swap

Psyllium husk (the fiber used in some laxatives) works as a direct 1-to-1 replacement for xanthan gum in almost any recipe. It thickens liquids, binds dry ingredients, and improves texture in baked goods. It is gluten-free and works well for people with corn allergies.

The trade-off is texture. Psyllium husk leaves a slightly grainy or sandy feel in the mouth, especially in smooth sauces or puddings. In baked goods, this is usually unnoticeable. It is harder to find than cornstarch or flaxseed and costs more. Buy it from health food stores, online retailers, or the supplement aisle of pharmacies.

Egg whites and gelatin for structure and setting

Egg whites bind ingredients and add structure to baked goods, though they work differently than xanthan gum. Use 1 egg white per teaspoon of xanthan gum in recipes where binding matters most — like gluten-free bread or dense cakes. Egg whites add moisture, so reduce other liquids in the recipe slightly.

Gelatin sets liquids into a gel or mousse. It does not thicken thin sauces the way xanthan gum does. Use gelatin when you want a final product that holds its shape — like aspics, panna cotta, or mousse. Bloom the gelatin in cold water first, then dissolve it in hot liquid. This works only for cold or room-temperature dishes, not hot sauces.

Guar gum and other specialty thickeners

Guar gum thickens liquids much like xanthan gum does and works 1-to-1 in sauces and gravies. It is less common in home kitchens but available online and in health food stores. Some people find it slightly less effective than xanthan gum, so you may need slightly more.

Tapioca starch and potato starch both thicken sauces and gravies. Use them 1-to-1 like cornstarch, mixing with cold water first. Tapioca starch creates a clearer sauce; potato starch creates a slightly cloudier one. Neither works well in baked goods. when ready mashed potato flakes can work in a pinch for thickening, though they add potato flavor.

Combining substitutes for gluten-free baking

In gluten-free baking, xanthan gum does heavy lifting — it replaces the structure that gluten would provide. A single substitute often is not enough. Try combining half the amount of two different replacements: for example, 1/2 teaspoon ground flaxseed mixed with water plus 1/2 teaspoon psyllium husk, instead of 1 teaspoon xanthan gum.

Test the dough or batter before baking. It should feel slightly sticky but hold together when squeezed. If it is too dry, add a tablespoon of liquid. If it is too wet, add a tablespoon of flour. Gluten-free baking requires more adjustment than regular baking, and the right ratio depends on your specific recipe and flour blend.

Frequently Asked Questions

Can I use regular flour instead of xanthan gum?

Flour thickens liquids but does not bind or improve texture the way xanthan gum does. In sauces and gravies, use 1 tablespoon flour per 1 teaspoon xanthan gum, mixed with cold water first. In baked goods, flour alone will not replace xanthan gum's binding power — combine it with another substitute like ground flaxseed.

What is the best substitute for xanthan gum in salad dressing?

Cornstarch or arrowroot powder work best — use 1-to-1. Mix the powder with a small amount of cold water or vinegar first, then whisk into your dressing. Let it sit for a few minutes to thicken. Psyllium husk also works but may leave a grainy texture in a smooth dressing.

Does xanthan gum have a taste?

Xanthan gum itself is flavorless, but some people detect a slight gummy or slimy taste in large amounts. Most substitutes are also flavorless, though ground flaxseed adds a subtle nuttiness and psyllium husk can taste slightly earthy if you use too much.

Can I make xanthan gum at home?

No. Xanthan gum is made by fermenting corn sugar with a specific bacterium in a lab setting. You cannot replicate this at home. Use one of the substitutes listed instead.

Which substitute works best for keto or low-carb baking?

Psyllium husk is lowest in carbs and works 1-to-1. Ground flaxseed is also low-carb. Avoid cornstarch and arrowroot powder, which are high in carbs. Egg whites add protein with minimal carbs and work well for structure in low-carb baked goods.