The sauce is similar to Genoese pesto, which is traditionally made of garlic, basil, pine nuts, grated Sardinian pecorino, and olive oil, crushed and mixed with a mortar and pestle.
The sauce is similar to Genoese pesto in its ingredients and preparation method, involving crushed and blended garlic, basil, pine nuts, grated Sardinian pecorino cheese, and olive oil.