01 - Set the air fryer to 375°F and allow it to preheat 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 every onion is evenly coated.
03 - Place the seasoned onions in a single layer inside the air fryer basket, ensuring even spacing for proper air circulation.
04 - Cook for 12 to 15 minutes, shaking the basket halfway through, until the onions are golden brown with a crispy exterior and tender center.
05 - Transfer the hot pearl onions to a serving dish and present immediately as an appetizer or side.