The science behind cornstarch is pretty cool, and it's all about the way it interacts with liquid. When you mix cornstarch with water, it creates a suspension that helps to thicken the liquid. It's kind of like adding a special kind of superpower to your soup, making it go from watery to wonderful in just a few minutes.
But, how much cornstarch should you use, and when should you add it to your soup? These are great questions, and the answers are pretty straightforward. A general rule of thumb is to use about 1-2 tablespoons of cornstarch per cup of liquid, and to add it towards the end of the cooking time, so it can do its magic without breaking down.
