Oil-free avocado pesto

Name: Oil-free avocado pesto
Prep time: 10 min
Total time: 10 min
Cuisine: European, Italian, Mediterranean
Ingredients: 1 Haas avocado; 1 cup fresh basil leavess (loosely packed); 1/2 cup water (plus more, if needed, to reach your desired consistency); 2 cloves garlic; 2 tablespoons cashews (raw or roasted is fine, or you can use pine nuts); 1/4 cup lemon juice; 2 tablespoons nutritional yeast (optional); salt and black pepper (to taste)