01 - Preheat the oven to 300°F and line two large baking sheets with parchment paper.
02 - Wash and thoroughly dry the kale leaves using a salad spinner or clean kitchen towel. Remove thick stems and tear leaves into bite-size pieces.
03 - In a large bowl, drizzle kale with olive oil. Toss until all leaves are lightly coated.
04 - Spread kale pieces in a single layer on the prepared baking sheets, ensuring pieces do not overlap.
05 - Sprinkle kale evenly with sea salt.
06 - Bake for 12 to 15 minutes, rotating the baking sheets halfway through cooking, until edges are crisp but not browned.
07 - Remove from oven and let kale chips cool on the baking sheets for a few minutes before serving.