Perfect Pesto

2 handfuls spinach leaves
1 handful basil leaves
2-4 cloves garlic
1/3 cup olive oil (more or less), divided
1/2 cup shelled, toasted pine nuts
6-8 oz. ground Parmesan cheese

Fill the bowl of a food processor with cleaned spinach and basil leaves and peeled cloves of garlic. Drizzle in olive oil to lubricate and pulse. Add pine nuts that have been toasted at 300F for a few minutes, and Parmesan cheese. Continuously drizzle small amounts of olive oil while running the machine until you have a runny paste. Taste and season with sea salt, if necessary