In a small bowl, mix the flour, chili powder, garlic powder, and salt. Place the beaten eggs in a second bowl and the panko breadcrumbs in a third bowl.
Dredge the avocado slices in the flour mixture, then the egg, and finally the panko breadcrumbs, pressing down lightly until the crumbs stick.
For air fryer avocado fries, air fry at 400°F for 7 to 8 minutes, turning halfway through, until golden brown.
For oven-baked avocado fries, bake on a lined, greased baking sheet at 425°F for 12–15 minutes, turning halfway through, until golden brown.
Serve hot with spicy mayo dipping sauce.
Video
Notes
Storage: These avocado fries are best when served fresh, but if you do have any leftovers, refrigerate them in an airtight container for up to 24 hours. To reheat, place in the air fryer or toaster oven at 360°F for 1–2 minutes. I don't recommend microwaving them, because it can soften the coating.