Add the broccoli, olive oil, garlic powder, salt, and pepper to a large bowl. Toss until the broccoli is evenly coated.
Arrange the broccoli in a single layer in the air fryer basket, leaving space between the florets. Cook in batches if needed.
Air fry at 375°F for 10–15 minutes, tossing halfway through, until the broccoli reaches your desired crispness.
Serve warm.
Notes
Refrigerate any leftover broccoli in an airtight container for up to 3-4 days. Air Fry for 1-2 minutes when reheating to make the broccoli crispy again.