While the chicken is cooking, prepare the glaze. In a bowl, combine soy sauce, Gochujang, ketchup, honey, grated ginger, onion powder, garlic powder, salt, black pepper, and Chinese five-spice powder. Mix well.
1 tablespoon soy sauce, 1 tablespoon Gochujang, 1 tablespoon ketchup, 1 teaspoon honey, 1 teaspoon grated ginger, ½ teaspoon onion powder, ½ teaspoon garlic powder, ½ teaspoon salt, ½ teaspoon black pepper, ¼ teaspoon Chinese five-spice powder