Preheat your oven to 400°F (200°C) and line a large baking sheet with parchment paper for easy cleanup.
Pat the chicken wings and the chicken breast (cut into 1-inch bite-sized pieces) completely dry with paper towels to ensure a crispy texture.
In a medium bowl, toss the chicken pieces with garlic powder, ginger powder, sea salt, and black pepper until evenly coated.
Arrange the chicken in a single layer on the prepared baking sheet, ensuring space between pieces, and bake for 25-30 minutes until the wings are golden and the breast pieces are cooked through.
While the chicken is roasting, combine the honey, tamari, toasted sesame oil, and rice vinegar in a small saucepan over low heat, whisking until the glaze is smooth and slightly thickened.
Remove the chicken from the oven and transfer it to a large clean bowl.
Pour the warm honey-tamari glaze over the chicken and toss vigorously until every piece is coated in a sticky, glossy finish.
Garnish with toasted sesame seeds and thinly sliced green onions before serving immediately.