Preheat your oven to 425°F (220°C) and line a baking sheet with parchment paper or a wire rack for maximum crispiness.
Pat the chicken wings thoroughly dry with paper towels to ensure the skin becomes perfectly golden and crispy.
In a large bowl, toss the wings with avocado oil, sea salt, black pepper, garlic powder, onion powder, and smoked paprika until evenly coated.
Arrange the wings in a single layer on the prepared baking sheet, ensuring they are not touching.
Bake for 35 to 40 minutes, flipping halfway through, until the skin is browned and the internal temperature reaches 165°F.
While the wings roast, whisk together the sugar-free BBQ sauce and sriracha in a small bowl.
Remove the wings from the oven and immediately toss them in the spicy BBQ glaze until every piece is well-coated.
Serve the hot wings immediately with fresh celery sticks on the side for a refreshing crunch.