Combine avocado, basil, pine nuts, and garlic in a food processor or blender. With machine running, slowly stream in the lemon juice, olive oil, and water as needed to create a smooth pesto. Puree until completely blended and creamy.
Season with salt and pepper to taste.
Use immediately or keep refrigerated for 1 to 2 days.
Recipe by Cheery Kitchen at https://cheerykitchen.com/avocado-basil-pesto-pg-2/