Preheat oven to 300°
Cut or tear the kale leaves away from the stem and tear the leaves into large pieces. Measure out five heaping cups and put them in a large bowl.
Mix the chili powder, garlic powder, and sea salt in a small bowl until combined.
Add the olive oil to the kale and massage it into the leaves until they’re all lightly coated. Add the spices and massage until it’s evenly coated on the leaves.
Put the leaves in one layer on the pan and bake for ten minutes. Shake the pan to loosen the leaves and turn the pan. Bake for five to ten more minutes or until the leaves are gently browned on the edges and crispy.