Preheat your oven to 250.
Combine sugar, cinnamon, and salt in a bowl and mix well.
In a separate bowl, add egg white and vanilla. Froth until foamy.
Add pecans to foamy mixture and stir to coat, then add sugar mixture and stir to coat.
Spread out evenly on a baking sheet and bake until golden brown (approximately 1 hour), stirring every 15 min. Set your timer!
Let cool and store in an airtight container.