Preheat your air fryer for 2-3 minutes. On mine, the setting is Air Fryer, 360 to 375 F. If you prefer to make this in the oven, preheat the oven to 425 F.
Cut up your broccoli florets into smaller pieces (unless they're already tiny).
Place in a bowl and drizzle with a little olive oil. Sprinkle with sea salt and a little cumin powder. Toss with a spoon to distribute and coat.
Throw the broccoli in the air fryer drawer and cook for 4 to 7 minutes. The time will depending highly on your air fryer and the size of the broccoli. About halfway through the cooking I usually pull out the drawer and shake it for a second, just to move everything around. In the oven this will take 10-20 minutes, depending.
Keep a close eye on the broccoli once you get past the 4-minute mark...it will go from perfect to charred in mere seconds! Once it's the softness and crispness you prefer, remove into a bowl, sprinkle with a tiny bit more salt, and eat immediately. You can also save as leftovers, they're decent if not amazing.