Prep the oven and pan: Preheat to 425°F (220°C). Line a sheet pan with foil and set a wire rack on top.
Lightly oil the rack for easy cleanup.
Dry the wings thoroughly: Pat wings very dry with paper towels. The drier they are, the crispier they’ll get.
Season and coat: In a large bowl, mix baking powder, salt, garlic powder, onion powder, smoked paprika, and black pepper. Toss wings in the mixture until evenly coated.
Arrange on the rack: Place wings skin side up, leaving space between each piece for air flow.
Bake until crisp: Bake 40–50 minutes, flipping once at the 25-minute mark.
Wings should be golden and the skin crackly. Internal temp should reach 165°F (74°C).
Make the buffalo sauce: While wings bake, melt butter in a small saucepan over low heat. Whisk in hot sauce and vinegar.
Keep warm.
Toss to coat: Transfer hot wings to a clean bowl and pour over the warm buffalo sauce. Toss until every piece is glossy and coated.
Serve: Plate with celery and your favorite keto ranch or blue cheese. Taste and add more sauce if you like it extra saucy.