Preheat oven to 250 degrees F. Line a baking sheet with parchment paper.
Add pecans to a large bowl. Add maple syrup, coconut oil, orange zest, and kosher salt. Using a rubber spatula, fold until pecans are evenly coated.
In a small bowl, whisk egg white until frothy. Add to the bowl with the pecans and fold until evenly combined.
Transfer the pecans to the prepared baking sheet in an even layer. Bake for 40-45 minutes, or until golden brown and toasted. Allow the pecans to cool completely on the baking sheet. Store in an airtight container for up to 2 weeks.