A quick-brewed infusion doesn’t require the investment of stock, and it is a great improvement over plain water. Most of these suggestions start with a single cup of water. Some ingredients, like nutritional yeast flakes and miso, can just be stirred into warm water. Others, like chicken and fish scraps, need to be simmered until they are cooked through. Use these “mock stocks” as a base for slurries, to liquefy purees, to moisten salsas, or to deglaze roasting pans or skillets.