Combine fresh basil, pine nuts, grated Parmesan cheese, garlic, lemon juice, and kosher salt in a food processor. Drizzle in olive oil and secure the lid.

Pulse for 10-15 seconds until coarsely combined; scrape down sides with a spatula as needed.

Blend for 30-45 seconds until creamy yet slightly coarse; avoid over-pureeing.

Taste and adjust seasoning with more salt or lemon juice if needed, then blend briefly to combine.

Serve immediately or store in an airtight container topped with olive oil to prevent browning.