Homemade Pesto in 5 minutes with 5 ingredients (not counting salt & pepper) Pesto is a sauce originating in Genoa in the Liguria region of northern Italy (pesto genovese), and traditionally consists of crushed garlic, basil, and European pine nuts blended with olive oil, Parmigiano Reggiano (Parmesan cheese), and Fiore Sardo (cheese made from sheep’s …(Grow lots of basil this spring/summer so you can make enough Pesto for you and friends)