Toast pine nuts by placing them on a microwave safe plate and microwave for 30 seconds at a time. Stir and microwave again for another 30 seconds or until walnuts smell fragrant. Do not overcook. Allow pine nuts to cool slightly..
Place basil, 1 tablespoon olive oil, pine nuts, and parmesan cheese in a food processor.
Turn the food processor on and drizzle in additional olive oil as the mixture processes until the desired consistency is reached.
Serve immediately or transfer to an airtight container for storage. See post for storage options and pesto shelf life.
Notes
Nutrition values are estimated. Always double check with your ingredients. Refrigerate leftover pesto in an airtight container or freeze to make it last longer. See post for more information.