– Preheat air fryer to 390 degrees F (about 3 to 5 minutes).
– Spray brussels sprouts with oil spray, or toss with olive oil in a medium bowl. Season with salt and pepper.
– Place brussels sprouts in an even layer in the basket.
– Cook for about 15 minutes. At the 8 minute mark, pause the air fryer and shake or flip them over. Resume cooking & cook until cooked through & golden brown.
– Drizzle with balsamic glaze, if desired.