In a blender of food processor, combine the garlic, salt, and oil. Process the ingredients until they are smooth.
Add the basil and pine nuts and blend the mixture until it is smooth, scraping sides as necessary.
Stir in the Parmesan cheese.
Notes
If you want a thinner sauce or have difficulty processing it, you can add some chicken or vegetable broth in step 2. Refrigerate for up to a week, freeze for up to six month.Adapted from Jane Brody's Good Food Book