I learned to make pesto sauce from a general surgeon in Topeka Kansas. One day we went to his house for lunch and he chopped a bunch of fresh basil off the bush. It is super easy to make. All you need is a buttload of basil, some olive oil, a few cloves of garlic, some salt and some parmesan. You just add the basil to the blender with a little olive oil. Keep adding more oil until all of your basil is smoothly blended. Add a few cloves of garlic and some parmesan cheese (about 1/4 cup for a good sized batch). Blend that up well and taste. Add salt if needed.
My naughty Aunt in Des Moines sent a huge bag of basil home with my wife on Tuesday. Seeing such a massive quantity of basil, I could not resist.