Cilantro Walnut Pesto

Sure, pesto is supposed to consist of basil and pine nuts and even contain some garlic and Parmesan cheese. Forget about the rules, I have made pesto with many different herbs. Whatever herb I have left lying around, no longer in its prime state, is what I use to make pesto. Also whatever nut I have on hand. Pine nuts are crazy expensive and not that tasty in flavor. Also whatever oil is nearest; doesn't have to be olive. Basically for me pesto = nut pureed with oil + herb + seasoning, That's it. And it's delicious every time. 

one bunch leftover cilantro
one handful walnuts
a few drizzles of oil
salt and pepper, to taste

Blender, food processor, robo coup, mortar and pestle, really good potato masher - whatever you've got!