Place basil, garlic, pine nuts, cheese and salt into the bowl of a food processor and pulse until finely chopped. Scrape down bowl sides with a spatula.
With the food processor running, add olive oil in a steady stream and process until smooth. (The less time this takes the better as heat from the blade can affect the flavor.) Taste and add more salt if needed.
Video
Notes
Makes about 1 cup of pesto
For the best flavor and color, chill your food processor blade in the freezer for 10–15 minutes before starting.
Store pesto in the refrigerator for up to 5 days or freeze for up to 3 months (I use ice cube trays).
Add a splash more olive oil after blending if you like a looser texture
I love to toss this with pasta, spoon over vegetables, grilled meats, or even swirl it into soup.