Peel the plantain first by slicing off the ends. Then, cut a thin slit down the peeling (careful to only cut through the peeling and not into the fruit), every quarter around the fruit. You should then be able to peel off each quarter length of peeling.Slice the plantain into ~1/16th inch (2 mm) thick rounds.
Add the plantains to a bowl along with the oil and salt. Toss to coat and then rest for 5 minutes to give them a chance to sweat out some of their moisture.
Place slices in 1-2 layers (slightly over lapping- you may need to work in batches) and air fry at 325 °F for 10-15 minutes.After every 5 minutes, toss or stir to ensure they cook evenly. Keep a close eye after 10 minutes of cooking so that they don't burn.
After cooking, remove to a dish to cool for 5-10 minutes. They will continue to crisp up as they cool.
Enjoy!
Notes
LeftoversPlace cooled plantain chips in an airtight container or zip-top bag for up to 1 week at room temperature.