This homemade pesto sauce is made with basil, olive oil, and parmesan. It's wonderful on pasta, and just as good as a topping for grilled meats, baked fish, and roasted vegetables.
Place the basil, garlic, and pine nuts in your food processor. Process for a few seconds until coarsely chopped.
Add the salt, pepper, and oil. Process until smooth and fully combined, about 30 seconds, stopping to scrape the sides of the bowl with a spatula if necessary.
Transfer the mixture to a small bowl and mix in the cheese. (See Notes below).
Use immediately, or cover and refrigerate, allowing the flavors to meld for a few hours. Stir again before using.
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Notes
After you're done mixing the sauce, check its consistency. If the sauce seems too dry, add a tablespoon of olive oil. If it's too liquid, add a tablespoon of parmesan.
The sauce is ready to serve immediately after mixing it, but the flavors develop more after it's had some time to rest.
You can keep the leftovers in an airtight container in the fridge for up to 5 days. You can also freeze them for 3 months. It's best to freeze this sauce in individual portions, using ice cube trays or small containers.