Step 1

Bring a pot of water to a boil; lightly season with salt.

Step 2

Quickly blanch basil and spinach for 15 seconds, then take out and lay flat on a sheet pan to cool.

Step 3

Place the blanched basil and spinach, garlic, Parmesan, ice cubes, cover and turn blender on medium. Drizzle in olive oil 1 ounce at a time. Season with salt and pepper, to taste.