Step 1

In a blender or food processor, pulse the basil, pine nuts, garlic, 1/2 teaspoon of salt, and 1/4 teaspoon of pepper until finely chopped. With the blender still running, gradually add enough oil to form a smooth and thick consistency. Transfer the pesto to a medium bowl and stir in the cheese. Season the pesto with more salt and pepper to taste.

Step 2

The pesto can be made 2 days ahead. Cover and refrigerate.