Preheat oven to 350
Wash and dry kale (or use pre-washed kale). It's critical the kale is completely dry
Tear out the stem of each piece of kale (this is the large membrane, not the smaller veins)
Put remaining kale "leaves" on a baking tray or cookie sheet
Sprinkle kale with olive oil (making sure not to drench the leaves. They just need enough to glisten
Spread kale out on pan, leaving room between kale pieces so heat can move around each piece
Sprinkle with salt
Put in oven and cook for 18 minutes
Check kale. If some pieces are soft, cook for 2 minutes longer
Place kale chips in a bowl or serving tray and serve immediately or place in sealed container for later