In a medium bowl, combine the oats, nuts, pumpkin seeds, melted butter, maple syrup, cinnamon, salt, vanilla, and egg white. Stir until everything is well coated. It should look glossy and clumpy.
Line your air fryer basket with an air fryer parchment liner. Spread the granola mixture in an even layer on the liner.
Air fry at 350°F (175°C) for 5 minutes. When you open it up, it will look wet and there will still be some liquid pooled - do not panic, that is completely normal at this stage.
Give the granola a good stir to move things around. Air fry again at 340°F (170°C) for another 5 minutes.
Pull the basket out and let the granola sit and cool completely. It will feel soft and chewy right now, and you might think it didn't cook properly. It did not. As it cools, it firms up and gets properly crunchy.
Once cooled, add your dried fruit or chocolate chips. Transfer to an airtight container.