Preheat oven to 400°F and line a baking sheet with a wire rack for maximum airflow.
Pat the chicken wings thoroughly dry with paper towels to ensure a crispy skin.
Toss wings in a bowl with sea salt, black pepper, and arrowroot powder until evenly coated.
Arrange wings on the rack and bake for 35-40 minutes, flipping halfway through, until golden brown.
In a small saucepan, combine honey, tamari, sesame oil, minced garlic, and grated ginger over medium heat.
Simmer the sauce for 4 minutes until it reduces into a thick, glossy glaze.
Transfer the crispy wings to a large bowl, pour the glaze over them, and toss to coat.
Garnish with thinly sliced green onions and serve immediately.