Preheat the oven to 350. Lightly oil a cookie sheet or line it with parchment paper.
Remove the kale midribs (you can save them for stock, if you want) and tear the leaves into bite-size pieces. You want them to be good and dry, so pat down with a towel or spin in a salad spinner.
Put them on the cookie sheet, drizzle with oil, and sprinkle with salt.
Bake for 10-15 minutes until crispy but not burnt. Don't let it burn. Really.