Place the pine nuts and garlic cloves into the bowl of a food processor. Pulse a few times until roughly chopped.

Add the packed fresh leaves to the processor. Pulse again until finely chopped.

Add the freshly grated Parmesan cheese, salt, and black pepper, pulsing briefly to combine.

While the food processor is running on low, slowly stream in the extra virgin olive oil until the mixture becomes a smooth, emulsified sauce.

Taste and adjust seasoning if necessary. Serve immediately over pasta or transfer to an airtight container.