A basic pesto sauce using fresh basil and pine nuts. Traditionally pesto is made by grinding fresh herbs, garlic, olive oil & nuts by hand with a mortar and pestle. While fun to do, it is time consuming, but with modern conveniences we can now cheat a little bit. This recipe uses a food processor but you can also finely chop everything with a good knife or a mezzaluna. See *Note below for a list of optional ingredients and feel free to use and experiment with any combination of herbs and nuts you may have available.