This Vegan Cornstarch Slurry Recipe helps thicken sauces. A versatile recipe that is a staple in any vegan kitchen. Cornstarch Slurry is commonly used in Asian cuisine and thickens dishes and sauces to the perfect consistency.
This recipe needs to be added when the dish or sauce is already heated as cornstarch requires heat in order to activate its thickening properties. It can be used to thicken soups, stews, sauces, gravies, and much more. It’s a quick and easy recipe that can be made in under 5 minutes, and it’s a great alternative to traditional flour-based thickeners. This recipe is gluten-free, dairy-free, and vegan. Perfect for those who are looking for a healthy and versatile thickening agent!
Ingredients & Substitutions: What Is In Cornstarch Slurry
To make a vegan cornstarch slurry, you only need two ingredients – cornstarch and water. The ratio is typically one part cornstarch to one part cold water. This means that if you use 2 tablespoons of cornstarch, you’ll need 2 tablespoons of cold water.
Helpful Tools
Making a vegan cornstarch slurry doesn’t require any special tools or equipment. However, having the following items on hand can make the process easier and more efficient:
- Whisk or fork: A whisk or fork can help you mix the cornstarch and water together thoroughly, ensuring that there are no lumps in the slurry.
- Measuring cups and spoons: Measuring cups and spoons can help you accurately measure out the cornstarch and water, making it easier to achieve the correct ratio of ingredients.
- Small bowl or measuring cup: A small bowl or measuring cup can be used to mix the cornstarch and water together, making it easier to pour the slurry into your recipe.
How To Make This Vegan Cornstarch Slurry
Making a plant based cornstarch slurry is a simple process that only takes a few minutes. To start, measure out the desired amount of cornstarch and cold water according to the ratio of one part cornstarch to one part water. For example, if you are using 1 tablespoon of cornstarch, use 1 tablespoon of cold water.

Next, mix the cornstarch and water together thoroughly in a small bowl or measuring cup until there are no lumps and the mixture is smooth. It’s important to mix the slurry right before adding it to your recipe to ensure that it stays smooth and doesn’t clump up.
Once the slurry is mixed, you can add it to your sauce, gravy, stew, soup, or any other dish that you want to thicken. Make sure to stir the slurry continuously as you add it to the recipe to prevent clumping and ensure that it is evenly distributed.
Cook the recipe for a few minutes after adding the slurry to give it time to thicken. You can adjust the amount of slurry you use depending on how thick you want your dish to be. If it’s not thick enough, you can add more slurry, but if it’s too thick, you can add more liquid to thin it out.
Tips & Tricks For This Cornstarch Slurry
- Use cold water: Using cold water is important to prevent clumping and ensure that the cornstarch dissolves fully.
- Mix the slurry right before adding it to your recipe: Mixing the slurry right before adding it to your recipe will prevent it from becoming too thick or clumping up.
- Use a whisk or fork to mix the slurry: Using a whisk or fork will help you achieve a smooth and silky slurry without any lumps.
- Add the slurry gradually: Adding the slurry gradually to your recipe while stirring continuously will help you achieve the desired thickness without over-thickening or creating lumps.
- Adjust the amount of slurry according to your preference: The amount of slurry you use will determine the thickness of your dish. Adjust it according to your preference.
FAQ: Vegan Cornstarch Slurry Recipe
Adding cornstarch directly to your hot soup or sauce without creating a slurry first can lead to unsavory clumps. To prevent this, a slurry is made by mixing cornstarch with a small amount of cold liquid. Such as water or broth, before adding it to your dish. This ensures a smooth, lump-free texture for your final product. It’s pretty gross to hit the texture of a cornstarch clump in your dish. 😂
Cornstarch has twice the thickening superpowers that flour has. So sub in 1 tbsp of cornstarch for every 2 tbsps of flour. Only half the cornstarch is needed to provide the same thickening result.
No, it’s best to use cold water to prevent clumping and ensure that the cornstarch dissolves fully.
No, corn flour and cornstarch are not interchangeable. Cornstarch is a finer and more processed version of corn flour, which makes it better for thickening.
It’s not recommended to use a blender or food processor to mix the slurry as it can create too much air and cause the slurry to become frothy. A whisk or fork is the best tool for mixing the slurry.

Cornstarch Slurry
Ingredients
- 1 part cornstarch
- 1 part cold water
Instructions
- Mix the cornstarch and water together thoroughly right before adding into a sauce, gravy, stew, soup or anything else you'd like to thicken.
- If you are using 1 tbsp of cornstarch use 1 tbsp of cold water.
Video
Notes
Conclusion
Get Smooth and Lumpy-Free Vegan Dishes with this Cornstarch Slurry Recipe. Say goodbye to unsightly cornstarch lumps in your vegan soups, sauces, and vegan gravies with this easy vegan cornstarch slurry recipe. By mixing cornstarch with cold liquid before adding it to your dish, you’ll ensure a smooth and lump-free consistency every time. Trust me, no one wants to chomp down on a clump of cornstarch – it’s a texture nightmare! Save yourself the trouble and whip up a batch of this simple slurry before you start cooking.
Great. Thank you for all the detail in your instructions. 😁
You’re welcome! Thank you so much for trying it out! I try to make all my vegan recipes super easy to follow 🥰
Great! Quick easy and simple to make thank you!
Hi Martha, thank you so much for trying out my recipe, so happy it was easy to follow. 😊