Mix together the seasoning ingredients in a small bowl or ramekin.
Wash and dry potatoes. Chop potatoes into small cubes and place them in a bowl.
Drizzle avocado oil over the potatoes and toss to coat. Sprinkle the seasoning mixture over the potatoes and toss again to coat evenly with the seasoning.
Preheat your air fryer to 400° Fahrenheit for a few minutes.
Spread the potatoes out evenly in your air fryer. Cook for 15-20 minutes, stopping to stir/shake them halfway through to ensure even cooking. Watch the potatoes carefully at the end of the cooking time to avoid overcooking them.
When the potatoes are easily pierced with a fork, remove from the air fryer and serve.