To prepare Brussels sprouts, rinse well. Trim off bottom (stem) end and remove any brown or tough outer leaves. Cut in half from top to bottom.
In a medium bowl, toss Brussels sprouts with olive oil, salt, and pepper.
Turn air fryer to 380ºF. Add Brussels sprouts to the basket.
Cook for 8-10 minutes, or until golden brown, tossing once or twice so they cook evenly.
Optional glaze: Combine honey, butter, red wine vinegar and red pepper flakes in the same bowl you used for the Brussels sprouts. Microwave on high until butter is melted. When Brussels sprouts are finished cooking, add back to bowl and toss to coat with glaze.
Nutrition information does not include glaze or toppings.
If you want to take it up a notch, when you remove the Brussels sprouts from the air fryer, sprinkle them with Parmesan cheese. Or drizzle with balsamic glaze, pomegranate molasses, or maple syrup, or toss them with barbecue sauce, honey mustard vinaigrette, or garlic butter.
Oven Method: Preheat oven to 425°F. Toss sprouts with 1 tablespoon olive oil, salt, and pepper. Spread in a single layer, cut side down, on roasting pan. Roast for 15 minutes, stir, and roast an additional 10 minutes or until golden brown and crisp.