This is essential for a creamy, stretchy texture that won’t get gloppy once it cools off.

You can learn more about nutritional yeast here. It has a cheesy umami flavor and without it, your vegan mac and cheese just won’t be cheesy tasting. This is a yellow powder found in most health food stores. For an extra rich and creamy mac and cheese, you can also use 1 1/2 cups of canned coconut milk or cashew cream plus 1/2 cup water in place of the 2 cups of milk.