Preheat oven to 425 degrees F. Coat a wire rack with nonstick spray and place on a baking sheet lined with aluminum foil; set aside.

Using paper towels, pat wings dry. In a large bowl, combine wings, 1 1/2 teaspoons salt, 1 teaspoon pepper and baking powder.

Place wings onto the prepared baking sheet and bake for 40-45 minutes, using metal tongs to turn at halftime.

In a small saucepan over medium low heat, combine oyster sauce, ketchup, marmalade, Dijon, honey and chili garlic sauce. Bring to a boil; reduce heat and simmer, stirring constantly, until slightly thickened, about 2-3 minutes.

Preheat oven to broil. Line a baking sheet with aluminum foil.

In a large bowl, combine wings and half the oyster sauce mixture. Place wings onto the prepared baking sheet and broil, turning once, until glossy and lightly caramelized, about 3-5 minutes. Stir in remaining oyster sauce mixture.

Serve immediately, garnished with green onions and sesame seeds, if desired.