whiskaffair's
STEP 1
Cut the avocado into half and discard the seed. Take out the flesh using a spoon and add it to the medium size blender jar. Discard the skin.
STEP 2
Add basil leaves, walnuts, garlic, olive oil, salt, black pepper, and parmesan cheese to the blender jar.
STEP 3
Blend to make a slightly coarse paste. Scrap the sides of the jar once while blending. Transfer the pesto to an airtight container and drizzle a layer of olive oil to prevent it from turning black from oxidation. Secure the lid and refrigerate.