Preheat oven to 300 °F. Line a large baking sheet with a silicone baking mat or parchment paper.
In a large bowl mix together all of the dry ingredients. In a medium bowl, whisk together maple syrup and coconut oil. Pour wet mixture and then egg white into dry mixture and stir until well combined.
Spread mixture out evenly on prepared baking sheet and bake for 35-50 minutes, until dry (I usually bake it for 40 minutes), rotating the pan 180 degrees after 20 minutes.
Let cool completely on the pan and then break into chunks and store in an airtight container.
Notes
LeftoversStore leftovers in an airtight container for up to 2 weeks or freeze for up to 3 months.