How Much Cornstarch Do You Need to Thicken Soup?

Learn the perfect ratio of cornstarch to soup for thickening, plus how to make a slurry to achieve the ideal soup consistency.

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To thicken soup, use 1 tablespoon of cornstarch mixed with 1-2 tablespoons of cold water (slurry) for each cup of soup. Stir the slurry into the soup gradually while simmering until desired thickness is achieved.

FAQs & Answers

  1. What is a cornstarch slurry and how do I make it? A cornstarch slurry is a mixture of cornstarch and cold water used to thicken liquids. Mix 1 tablespoon of cornstarch with 1-2 tablespoons of cold water before adding gradually to hot soup.
  2. Can I use cornstarch to thicken any type of soup? Yes, cornstarch can thicken most soups, especially clear or broth-based ones. However, it works best in soups without dairy as it can sometimes cause curdling.
  3. How long does it take for cornstarch to thicken soup? After stirring the slurry into the soup, continue simmering for a few minutes until the soup reaches your desired thickness.

Watch More

For more cooking tips and techniques to perfect your recipes, check out our guides on thickening sauces, ideal broth bases, and easy soup recipes that you can customize at home.

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