In a bowl, mix the sliced sweet potatoes with the evoo and cayenne and salt. Lay on a sheet pan in one even layer and bake for 30-40 minutes, keeping a close eye on any chips on the thinner side that might bake faster.
Recipe by Keys to the Cucina at http://keystothecucina.com/2014/04/11/four-ingredient-baked-sweet-potato-chips/