1. Put the first four ingredients into the bowl of a food processor; pulse until pureed. Let sit for 5-10 minutes to temper the garlic.
2. Add the cheese and the oil and process. Pulse a bit. Your goal is to integrate all the ingredients while retaining some texture.
3. If it is too dry, add a bit more oil. Add the nuts and pulse several times until the pistachios are chopped but not pulverized.
4. You want to experience texture and crunch. Take a tatse and adjust seasonings to taste.