Slice the apples as thin as you can get them. Use a mandoline slicer if you have one.
Set your oven to the lowest setting you can get it to. For me that is 165 degrees.
Place the apple slices onto two sheet pans covered with parchment paper to prevent sticking.
Arrange them in a single layer.
Place in the oven for 4 to 6 hours until the apples are completely dried. Check them about every hour making sure to flip them for even drying.
Allow to completely cool before storing them. Store them in a well sealed plastic container do not storage them in a plastic bag that will trap moisture.
They are best enjoyed within a week.