Apple Chips
Ingredients:

2 golden delicious apples*
1/8 tsp ground cinnamon
1 tsp sugar
Directions:

Preheat the oven to 225 degrees F.
Stir together the cinnamon and sugar to combine. Set aside.
Decide whether or not to core your apples, then slice them thinly with a mandolin slicer. Line two sheet pans with parchment paper, and place the apple slices side by side on the parchment, in a single layer. Make sure not to overlap the apple slices or place them on top of each other, otherwise they won’t crisp up. Sprinkle the apple slices with the cinnamon sugar, and note that if you sprinkle from high above, the cinnamon sugar will disperse more evenly.
Bake the apple slices for 1 hour, then remove them from the oven and flip them over. The apples will be floppy, but they will crisp up later. Return the apple slices to the oven for another hour, then turn the oven off. Let the apple chips cool completely in the oven, this is when they will crisp up. Once they’ve cooled, enjoy!
Notes

*I’ve only tried these with Golden Delicious and Fuji apples, my two favorites. The Golden Delicious crisped much more than the Fujis did. I am going to test out additional apple varieties and will update this recipe each time I do. UPDATE: A reader has reported that Granny Smith works well too. Recipe adapted from Leanne Bakes.

Pictures by http://www.kidskubby.com/easy-baked-apple-cinnamon-chips/