Optional overnight step: Arrange the wings on a wire rack set over a baking sheet and refrigerate uncovered for 8 to 24 hours to dry the skin. This step is optional, but it makes the wings even crispier.
Prep the wings: Pat the wings very dry with paper towels.
Preheat and set up: Place an oven rack in the upper-middle position. Preheat the oven to 250°F. Set a wire rack over a rimmed baking sheet and lightly grease the rack.
Season: In a large bowl, toss the wings with baking powder, garlic powder, salt, and black pepper until evenly coated. Arrange the wings in a single layer on the rack.
Bake low: Bake at 250°F for 30 minutes to render fat.
Bake high: Increase the oven temperature to 425°F (leave the wings in the oven as it heats). Bake for 40 to 50 minutes, rotating the pan halfway through, until the wings are deeply golden and crisp.
Make the buffalo sauce: While the wings bake, warm the hot sauce, melted butter, vinegar, Worcestershire sauce, and garlic powder in a small saucepan over medium-low heat until smooth. Keep warm.
Toss and serve: Transfer the hot wings to a large bowl, drizzle with warm buffalo sauce, and toss to coat. Serve immediately with celery, carrots, and ranch or blue cheese, plus extra buffalo sauce on the side.