Preheat oven to 450°F, line a baking sheet with foil, and place a wire rack on it. Spray rack lightly with cooking spray.
Pat chicken wings with paper towels, trying to get rid of as much moisture as possible. Place in a large bowl.
Sprinkle wings with baking powder, paprika, garlic powder, ½ teaspoon salt, and ½ teaspoon pepper. Toss to coat wings.
Arrange wings on prepared wire rack, leaving a little bit of space between them. Bake for 30 minutes. Remove from oven and using tongs, flip each wing. Return to oven and bake for another 15-20 minutes, until wings are browned and crispy.
While wings are baking, add hot honey, sriracha, apple cider vinegar, ¼ teaspoon red pepper flakes, ¼ teaspoon salt, and ¼ teaspoon pepper into a small saucepan over medium heat. Bring to a simmer. Once simmering, lower heat and cook for about 5-10 minutes, stirring occasionally, until sauce thickens a bit.
Remove chicken wings from oven and place in a large clean bowl. Pour hot honey sauce over the top and toss to coat. Place wings on platter and pour any sauce remaining in bowl over them. Top with scallions and additional red pepper flakes, if desired.