
Some say using a blender rather than a food processor to purée the basil, pine nuts, olive oil, and garlic results in a smoother sauce. When combining pesto with pasta, Ligurians mix a small ladle of the cooking water into the pesto just before adding the noodles; this dilutes the concentrated sauce and helps it adhere to the pasta.
Recipe information
Yield
Makes about 1 cup
Ingredients
4 cups fresh basil leaves (from about 3 large bunches)
1/2 cup olive oil
1/3 cup pine nuts
2 garlic cloves
1/4 cup freshly grated Parmesan cheese
1/4 cup freshly grated pecorino Sardo or Parmesan cheese
1 teaspoon coarse kosher salt
Preparation
Combine first 4 ingredients in blender. Blend until paste forms, stopping often to push down basil. Add both cheeses and salt; blend until smooth. Transfer to small bowl. (Can be made 1 day ahead. Top with 1/2 inch olive oil and chill.)