1. In a food processor, combine first 4 ingredients (through garlic); blend until smooth.
2. Slowly drizzle in oil through an oil spout until mixture is glossy, very smooth and coats the back of a metal spoon without running off quickly.
3. Season with salt and pepper to taste.
4. Use immediately or store in the refrigerator, covered with a thin layer of olive oil, for up to 3 days.

Variations:

• Substitute another fresh herb (such as cilantro, oregano or Italian parsley) or spinach for all or part of the basil.
• Add drained sun-dried tomatoes, roasted red peppers, olives or artichokes.
• Use walnuts, almonds or pecans in place of the pine nuts.
• Try Asiago or Romano cheese in place of Parmesan.