Lightly grease a large baking sheet (rimmed is best, but use whatever you have).
Place the egg white and water in a mixing bowl. Beat with an electric mixer until frothy.
In a separate bowl, stir together the sugar, salt, and cinnamon until well blended.
Pour pecan halves into the frothed egg white mixture and stir to coat well. Then take a handful of raw pecans at a time and gently toss them in the cinnamon sugar mixture with your hands.
Place the coated pecans onto the prepared baking sheet and bake at 300 for 30 to 40 minutes, stirring every 10 minutes.
