Prepare a large baking sheet with sides by covering with parchment paper, non-stick foil, or coating with non-stick baking spray. Set aside
Place the pecans [1 pound or 4 cups] into a large mixing bowl and set aside.
In a medium to large bowl, beat egg white with 1 tablespoon of water until the egg whites are foamy.
Add the vanilla [1 tablespoon], white sugar [1/2 cup], brown sugar [1/2 cup], ground cinnamon [2 teaspoons], and salt [1 teaspoon] to the egg whites and beat until smooth.
Pour mixture over the pecan halves and stir to completely coat all the pecan halves.
Place the coated pecans on the prepared baking sheet and spread as evenly as possible.
Place the pan into the preheated 250⁰F oven and bake for 1 hour, stirring every 15 minutes.
Remove from the oven and allow to cool before breaking into pieces.
Notes
Makes 6 to 7 cups of nuts.
During the first stage of cooking the pecan coating may look like sand. This is fine, keep baking as directed.
Do not use a higher temperature or turn the oven up while baking.
Allow the nuts to cool completely before packaging, excessive heat may result in moisture in the container and soggy pecans.