Preheat oven to 225°
In a mixing bowl, beat egg white and water until frothy
Add pecans and fold repeatedly with rubber spatula until completely coated with egg whites
Combine cinnamon, sugar, and salt, sprinkle over nuts, and fold again until granules are completely distributed onto the pecans
Spread out nuts in a single layer on a large baking sheet
Place into oven for 1 hour, setting a timer to stir and flip every 15 minutes
After 1 hour, spread pecans out onto wax paper and allow to cool
Store in an airtight container at room temperature