Preheat your oven to 350 degrees F and line a large baking sheet with parchment paper or a silicone baking mat. Set aside.
In a large bowl combine your oats, nuts/seeds (I used a mix of chopped almonds, walnuts, and hazelnuts), sugar, and cinnamon. Mix until everything is well incorporated.
Mix in your vanilla extract and melted butter. Once that is all mixed in, add in your egg white and mix one more time until everything is very well mixed together.
Pour your granola mixture onto your prepared baking sheet and spread into an even layer, bake in your preheated oven for 15-18 minutes. It will still be soft when you take it out and will harden as it cools.
Once your granola has cooled you can break it into small chunks and enjoy!