Preheat your oven to 425°F (220°C) and place a wire rack over a large baking sheet.
Pat the chicken wings extremely dry with paper towels to ensure maximum crispiness.
In a large bowl, whisk together the arrowroot starch, sea salt, black pepper, and garlic powder.
Add the wings to the bowl and toss thoroughly until every wing is lightly and evenly coated in the starch mixture.
Arrange the wings on the wire rack in a single layer, ensuring they are not touching.
Bake for 35-40 minutes, flipping halfway through, until the skin is golden brown and very crispy.
While the wings bake, prepare the sauce by combining the honey, tamari, toasted sesame oil, minced garlic, grated ginger, and rice vinegar in a small saucepan.
Simmer the sauce over medium-low heat for 3-5 minutes until it thickens into a glossy glaze.
Transfer the crispy wings to a clean bowl, pour the warm honey-garlic glaze over them, and toss to coat.
Garnish with sesame seeds and sliced green onions before serving immediately.