Add pistachios to a food processor and blend until really finely chopped. Set aside in a bowl.
Add garlic cloves and salt to processor and again blend until finely chopped. Add to bowl with the pistachios.
Add 1.5 oz. cheese to processor and blend until fine, add to bowl with pistachio blend.
Add basil leaves and olive oil to processor. Process until basil leaves are finely chopped. Add the pistachio blend back into the food processor and blend until fully combined.
Enjoy with your favorite pasta, on a sandwich, etc!