1 quantity basil leaves (I grab a pot of growing basil from the supermarket and give it a serious haircut!)
2 large cloves garlic
2 tbs nuts (pine nuts are traditional, but expensive; use any unsalted nuts. I have been known to use salted cashews in a pinch!)
2 tbs olive oil
Put this all in a food processor and whizz until it's as smooth as you can get it!