Preheat oven to 300°F. (Same temperature for standard oven or convection oven.)
Rinse kale and dry in a salad spinner. If you don't have a salad spinner, lay kale on a towel and pat dry.
Arrange kale in a single layer on a baking sheet.Tip: Avoid crowding the kale. The kale won't crisp as easily if crowded.
Drizzle the oil over the kale, and then sprinkle with salt and your seasoning of choice. Massage the kale with your hands to coat with the oil and seasoning.
Standard oven: Roast for 10 minutes, and then turn. Cook about 10 more minutes, until the kale is crisp to the touch and none of the chips are soggy. Total oven time: about 20 minutesConvection oven: Roast for 10 minutes, and then turn. Cook about 6 more minutes, until the kale is crisp to the touch and none of the chips are soggy. 16 minute approximate total cook time.
Serve chips immediately, or store in a loosely covered container at room temperature for 2-3 days.
Notes
Troubleshooting:My kale chips are soggy. Make sure to thoroughly dry the kale after rinsing, and avoid overcrowding the kale on the baking sheet. If your kale is still not crisp, your oven may cook at a slightly lower temperature. Try increasing the cook time by about 5 minutes.My kale chips are burnt. Your oven may be cooking at a slightly higher temperature. Decrease the cook time by about 5 minutes.I didn't use enough seasoning + my kale chips are bland. Add more seasoning after baking, and remember next time to add more before baking. I like adding extra nutritional yeast after baking even when I added enough seasoning from the beginning! Nutrition information assumes kale chips are seasoned with only oil, salt, and nutritional yeast.