Cut the chicken breast into bite-sized 1-inch pieces.
In a small bowl, whisk the egg white until frothy. In a separate shallow dish, combine the arrowroot powder, sea salt, and black pepper.
Dip each chicken piece into the egg white, then dredge in the arrowroot mixture until evenly coated.
Lightly grease the air fryer basket with avocado oil. Arrange the chicken in a single layer and air fry at 400°F for 10-12 minutes, shaking halfway through, until golden and crispy.
While the chicken cooks, whisk together the honey, tamari, and minced garlic in a small saucepan over medium heat.
Simmer the sauce for 2-3 minutes until it thickens into a glossy glaze.
Steam the broccoli florets until tender-crisp, about 4-5 minutes.
Toss the crispy chicken bites in the warm honey-garlic sauce until fully coated.
Serve the glazed chicken over the cooked white rice with the steamed broccoli on the side.