Dice the eggplant into 1-inch cubes and sprinkle with kosher salt. Let it sit for about 10 minutes before rinsing off the salt and patting dry with paper towels.
In a large bowl, combine the diced eggplant with avocado oil, rosemary, thyme, powdered garlic, smoked paprika, and additional kosher salt if needed. Toss everything together until each cube is well-coated.
Preheat your air fryer to around 400°F (200°C).
Place the seasoned eggplant cubes in the air fryer basket in a single layer. Air fry for about 12–15 minutes, shaking halfway through to promote even cooking.
Remove the air-fried eggplant from the basket and let them cool slightly before serving.