Pat the chicken wings dry and then toss them in the oil, salt, garlic powder, and baking powder.
Lay them in a single layer on a baking sheet lined with parchment paper. Bake the wings for 45-50 minutes, flipping halfway through.
While the wings are cooking, make the sauce. Add all of the sauce ingredients to a small saucepan and whisk together until well combined. Bring the sauce to a boil and then reduce the heat to a simmer for 2-4 minutes until it has thickened and coats the back of a spoon.
Once the wings have finished cooking, transfer them to a heat safe bowl and pour the sauce over the wings. Toss the wings in the sauce until well coated.
Garnish with thinly sliced green onions and enjoy!