In one bowl mix together sugar, brown sugar, and cinnamon. Set aside. In a sepetate bowl whisk egg white and vanilla until a little frothy.

Place pecans in crockpot and drizzle with egg white mixture. Stir together to evenly coat the pecans. Sprinkle cinnamon sugar mixture over the top and stir until evenly coated.

Cook on low for 3 hours, stirring every 20 minutes. Stir in water when 20 minutes of cook time remains.

Once cooking time is up, spread pecans on a cookie sheet to cool, at least 20 minutes before storing.