The best sauce in Genoa, the pesto

Description

Pesto or, in extenso, pesto alla genovese, is a sauce originating in Genoa, the capital city of Liguria, Italy. It traditionally consists of crushed garlic, European pine nuts, coarse salt, basil leaves, Parmigiano-Reggiano (Parmesan cheese) and pecorino sardo (cheese made from sheep's milk), all blended with olive oil