Preheat oven to 120℃.
Line a rimmed baking sheet with baking/parchment paper and set aside.
In a small bowl, add white sugar, light brown sugar, cinnamon and salt and mix to combine, then set aside.
100 g white sugar (granulated/table sugar), 50 g light brown sugar, 2 teaspoon ground cinnamon, ¼ teaspoon cooking salt
In a large bowl, add egg white and vanilla and whisk until white and frothy.
1 egg white, 2 teaspoons vanilla extract
Add pecans into the egg white mixture and stir to coat.
300 g pecans
Tip the sugar mixture into the pecans and mix well to combine.
Tip pecans out onto the prepared tray and get them into a single layer (and separated) as best you can.
Place into preheated oven to bake for 55 - 60 minutes, giving them a mix at 15-minute intervals (3 times during cooking).
Allow the cinnamon pecans to cool on the tray.