To add cornstarch to soup without creating lumps, you'll want to create a slurry. A slurry is a mixture of cornstarch and a liquid that helps to evenly disperse the cornstarch in the soup, preventing clumps from forming. Here's a step-by-step guide on how to do it:
Measure the cornstarch: Start by measuring the appropriate amount of cornstarch needed to thicken your soup. Typically, you'll need about 1 tablespoon of cornstarch for every cup of liquid in the soup.
Mix with cold liquid: In a separate bowl or cup, mix the cornstarch with an equal amount of cold liquid. The best choices are water, broth, or any other liquid that complements the flavors of your soup. For example, if you're using 1 tablespoon of cornstarch, mix it with 1 tablespoon of cold water.
Stir until smooth: Stir the cornstarch and liquid together vigorously until you achieve a smooth, lump-free slurry. Ensure there are no visible lumps of cornstarch remaining.
Gradually add to the soup: While stirring the soup continuously with one hand, slowly pour the cornstarch slurry into the soup with your other hand. Keep stirring the soup as you add the slurry to prevent any clumps from forming.
Continue cooking and stirring: Allow the soup to cook for a few more minutes after adding the slurry. As the soup simmers, the cornstarch will thicken the liquid. Make sure to stir the soup occasionally during this time to distribute the thickening agent evenly.
Adjust consistency if necessary: If the soup is not thick enough to your liking, you can repeat the process with a new cornstarch slurry and add it gradually until you achieve the desired thickness.
Remember that cornstarch thickens quickly, so it's essential to add it gradually and stir continuously to avoid lumps. If you accidentally create lumps, you can use a fine-mesh strainer or a handheld blender to smooth out the soup's texture.