Step 1

Preheat oven to 325°F. Line 2 large, rimmed baking sheets with parchment paper.

Step 2

Using a very sharp knife or a mandolin, cut apples crosswise into 1/8-inch (3 mm) thick slices.

Step 3

In a small bowl, combine sugar and cinnamon.

Step 4

Arrange apple slices in a single layer on prepared baking sheets. Spray with cooking spray and sprinkle with cinnamon sugar mixture.

Step 5

Bake in preheated oven for 35 to 40 minutes or until edges are browned and slices are dry and crispy. Transfer chips to a wire rack and let cool completely (they will crisp more as they cool). Eat!