01 - Preheat the air fryer to 375°F for 3 minutes.
02 - In a large mixing bowl, toss the peeled pearl onions with olive oil, sea salt, black pepper, garlic powder, and dried thyme until evenly coated.
03 - Place the seasoned onions in a single layer in the air fryer basket, ensuring even spacing for proper air circulation.
04 - Cook for 12–15 minutes, shaking the basket halfway through, until the onions are golden and crispy on the outside with a tender interior.
05 - Transfer to a serving dish and serve immediately as an appetizer or side dish.