1 Red Delicious apple, cut into paper-thin slices
1 teaspoon sugar

Preheat oven to 200. Cover a baking sheet with parchment paper. Arrange apple slices in a single layer on parchment paper; sprinkle with sugar. Bake at 200 for 1 1/2 hours or until lightly browned. Remove from parchment paper; cool on a wire rack.