Recipe courtesy of Everyday Food via CLBB
3 large egg whites
1 tsp coarse salt
3 baking potatoes
1 1/4 c grated Parmesan cheese
Preheat oven to 425 degrees. In a wide, shallow bowl, whisk egg whites with salt until frothy. Cut each potato into 6 long spears. Add to egg whites and turn to coat.
Lift spears out of egg whites, shaking off excess. Sprinkle with cheese until coated. Place on a parchment-lined baking sheet.
Bake without turning until potatoes are fork-tender and golden brown, about 30 minutes. Season to taste.
Originally made and reviewed here.