In a recipe this simple, every ingredient shines, so be sure to use the best-quality cheese and chicken broth you can find. Prep and Cook Time: 30 minutes. Notes: Parmigiano-reggiano cheese (true parmesan from northern Italy and very flavorful) is sold in gourmet, Italian, and Whole Foods stores, or in any supermarket with a good cheese selection. Parmesan cheese from Argentina is a widely available, less expensive substitute. This soup is meant to be made just before serving; after a few hours in the broth, the pasta will turn soft and gummy.