Preheat the oven to 300 degrees F and line a baking sheet with parchment paper.
Whisk together the egg white and water in a bowl until slightly foamy. In a separate small bowl, whisk together the avocado oil, pure maple syrup, vanilla extract, ground cinnamon and sea salt until combined.
Add the walnuts, cashews, pumpkin seeds, and shredded coconut to a blender or food processor, and process for just a couple of seconds to chop the ingredients smaller.
Transfer the nutty mixture to a large mixing bowl along with the egg white mixture and the oil/maple mixture. Mix everything together until well combined.
Spread the granola mixture on the parchment-lined baking sheet into an even layer. It will be a somewhat thick layer, and this is normal! Bake for 20 to 30 minutes or until golden-brown and crispy.
Remove granola from the oven and allow it to sit at least 30 minutes without stirring it – this is where the clustering happens, so be sure to not skip this step!!
Use a spatula or wooden spoon to break the granola into clusters.
Once cool, store the granola in a 2-quart sealable glass jar or zip lock bag.
Eat granola with your favorite non-dairy milk or yogurt and fruit