Use a mandoline slicer or vegetable peeler to slice the parsnips into thin slices.
In a large bowl combine: parsnip slices, avocado oil and sea salt. Toss with spoon to coat in oil and salt.
Place parsnip slices onto lined baking sheets. Bake each sheet of chips, one at a time, for 12 to 20 minutes or more until browned and crisp. Check at 10 minutes and if they are still soft then continue baking.
Once browned and crisp, let cool a little to dry out. If they are still soft, then they need to bake a little longer. Bake the second sheet after the first is done. Add more salt to taste if desired. you can deep-fry these in oil according to the fryer's instructions or an air fryer.
Notes
* all nutritional data are estimates based on the products I used*