Add the 1 kilogram chicken wings to a bowl and then sprinkle with the ¼ teaspoon salt and 1 teaspoon black pepper while moving the wings around to ensure they get an even coating.
Toss the wings thoroughly to ensure the seasonings are evenly distributed.
Arrange the seasoned wings in a single layer on a wire rack set over a tray. Place the tray in the refrigerator uncovered and allow the wings to dry overnight.
To bake the wings, place your oven rack in the middle position and preheat to 375°F (190°C).
Sprinkle the wings with 1 tablespoon potato starch and then toss them to give them a thin, even starch coating.
Line a baking sheet with aluminum foil and place a wire rack on top. Arrange the wings on the rack with the skin’s thicker side facing up so they do not overlap.
Brush the chicken wings with the 1 tablespoon vegetable oil and put them in the oven. Bake until the skin has rendered out most of its fat (45 minutes to 1 hour).
Add the 3 tablespoons sugar, 3 tablespoons soy sauce, ⅓ cup sake, 1 teaspoon ginger juice, and 7 grams grated garlic to a pan and boil the mixture until it thickens and forms large shiny bubbles.
Turn off the heat and stir in the 1 tablespoon black vinegar. Pour the sauce into a large bowl.
When the tebasaki are crisp, remove them from the oven and dump them into the bowl with the sauce. Toss to coat evenly and then sprinkle with the 2 teaspoons toasted sesame seeds to serve.