In a small dry skillet, toast the pine nuts over medium-low heat, tossing frequently, until golden, about 3-5 minutes.
Add the sun dried tomatoes, garlic, salt, basil, Parmesan, pine nuts, and optional crushed red pepper to the bowl of a food processor and pulse until roughly chopped and blended, scraping down the sides as needed.
Slowly drizzle the olive oil in through the feed tube, with the processor running on low speed, until you reach your desired consistency.
Taste and add additional salt if desired. For a little spice, add a couple shakes of crushed red pepper. If you like a looser pesto, drizzle in a little more oil.
Video
Notes
Store in an airtight container in the refrigerator for up to a week, or freeze for up to 4 months.