How to Thicken Soup With Corn Starch

Cornstarch is obtained from the kernel of the maize plant.You can use it in cooking as a thickening agent for liquids such as sauces, gravies and broths. If you add too much water or broth to a soup, you can use cornstarch to thicken it to your preference. Using cornstarch, you can transform soup with broth no thicker than water to a gravy-like consistency, and anywhere in-between. Thickening soup with cornstarch requires approximately 15 minutes.

Things You'll Need

  • Water

  • Small microwave-safe bowl

  • Cornstarch

  • Whisk

  • Wooden spoon

Step 1

Pour 3 tbsp. water into a small bowl for every 3 cups of soup you need to thicken. Microwave in 15-second increments until it boils.

Step 2

Add 4 tbsp. cornstarch to the boiling water for every 3 cups of soup. Whisk the cornstarch into the water until it forms a smooth consistency.

Step 3

Pour the water and cornstarch mixture into your soup and stir with a wooden spoon for 60 seconds. Simmer the soup for 15 minutes over low heat.

Step 4

Sample the soup's broth. If it is not thick enough for your taste, make a second batch of water and cornstarch and repeat the process.

Tip

If you do not whisk the cornstarch into the water completely, it will create tasteless lumps in your soup.

References & Resources

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