Preheat oven to 350 degrees. Prepare baking pan by lining with non stick foil and spray with cooking spray.
Whisk egg and water in medium sized bowl. Set aside. Stir together cashew meal, salt, and garlic powder in another medium sized bowl. Dip chips in egg wash, then coat both sides with cashew meal. Place each chip in a single layer on foil lined sheet.
When finished battering all chips, spray top of chips with foil then place in oven to bake.
Bake for 7 minutes or until bottom of chip has browned. Carefully flip the chip over and brown the opposite side, 7 more minutes. Serve hot.