I prefer this with 1/2 spinach and 1/2 basil, to lighten the flavor.
4 garlic cloves (minced)
2 cups fresh basil leaves (chopped)
2/3 cup Pine nuts
1 1/2 cups Parmesan cheese
1 1/2 cups olive oil
Place garlic, basil, parsley, pine nuts and Parm in a blender. Blend at medium speed for approximately 2 minutes. Continue blending on a low speed, while adding oil slowly until smooth. The consistency will be somewhat pasty. Since the sauce is not heated, serve over hot pasta.