Step 1: Carefully cut each ear of corn into quarters lengthwise. To do this safely, cut the cob in half crosswise first, then stand each piece vertically and cut down through the center of the cob.
Step 2: In a small bowl, whisk together the avocado oil, smoked paprika, garlic powder, onion powder, chili powder, salt, and pepper.
Step 3: Place the corn pieces in a large mixing bowl and pour the oil mixture over them. Toss thoroughly until each piece is evenly coated with spices.
Step 4: Pre-heat your air fryer to 400°F (200°C).
Step 5: Arrange the corn in the air fryer basket in a single layer, ensuring they are not touching. You may need to work in batches.
Step 6: Air fry for 10-12 minutes, shaking the basket halfway through, until the corn ribs are curled and the edges are charred and crispy.
Step 7: Remove from the air fryer and serve immediately with a squeeze of fresh lime juice and a drizzle of chipotle mayo if desired.