Preheat oven to 250ºF.
Grease a wire rack with olive oil (or coconut oil) and place on top of a cookie sheet. This will allow the air to circulate as the chicken is dehydrating. Set aside.
Trim chicken of all visible fat.
Slice the chicken 1/8th inch to 1/4 inch thick.
Place the chicken slices on a rack and cook for 2 hours *(check them after an hour and then every thirty minutes or so. Everyone's oven can vary a little, so after you make them once you can adjust the time as necessary).
Flip them over after 2 hours and continue to dehydrate in the oven for another 45 minutes, or until fully crisp.