Wash the kale leaves, then dry them as much as possible with a clean dish towel. Tear the kale leaves away from the stems, and into the desired size for chips. In a medium bowl, gently toss the kale leaves with the olive oil.
Line a baking sheet with parchment paper. Place the kale leaves in a single layer on top of the sheet and sprinkle them with salt and onion powder.
Bake 30 to 35 minutes until the kale leaves are crisp. Cool and enjoy immediately! They’re best eaten within a few hours, but if you happen to have leftovers you can store them in a sealed container for 1 day.