Basil 101: Pesto

In a food processor, combine the pine nuts, lemon juice, garlic, salt, and several grinds of pepper. Pulse until well chopped.

Add the basil and pulse until combined.

With the food processor running, drizzle in the olive oil and pulse until combined. Add the Parmesan cheese, if using, and pulse to briefly combine. For a smoother pesto, add more olive oil.