A wing is a skin delivery system
Nobody eats a wing for the meat. There are two or three bites of it, wrapped around thin bones, and the whole reason wings became the default bar food and game-day staple is the skin. A wing has more skin per bite than any other cut of the bird, and when that skin turns crackling and blistered it carries sauce better than anything else on the table. So the entire job, no matter which method you use, is crisp skin over juicy meat. Get that and the sauce is a detail. Miss it and no amount of Buffalo sauce rescues a flabby, greasy wing.
That framing simplifies every decision. You are not really cooking meat, which on a wing is forgiving and hard to ruin. You are managing skin, and skin has exactly one enemy.
Dry first, then hot
Skin is fat and water held in a web of collagen. To crisp, it has to lose the water, then render the fat and brown. Every step that works backs into those two facts.
Water is the problem. A wet wing spends its first minutes in the oil or oven boiling off surface moisture instead of browning, and by the time it finally starts to crisp the meat is overcooked. That is why drying matters more than any sauce or seasoning: pat the wings bone-dry, salt them ahead so the salt pulls even more moisture out, and if you have time, leave them uncovered in the fridge for a few hours so the surface dehydrates. Cooks who do nothing else but dry their wings well are already ahead of most restaurants.
Heat is the other half. Skin needs enough sustained heat to render the fat and drive the browning reactions, but not so much that the outside burns before the fat is gone. That sweet spot is why 375°F is the number for frying and 425°F for the oven. Both are hot enough to crisp, cool enough to give the fat time to render.
Deep-frying, and why to fry twice
Deep-frying is the standard because hot oil surrounds the whole wing at once, rendering and crisping every surface evenly. Heat a neutral oil with a high smoke point, peanut, canola, or refined vegetable oil, to 375°F (190°C), and fry the wings in small batches for 8 to 12 minutes until deep golden and 175°F or higher inside. Keep a thermometer in the oil, because a batch of cold wings will drop the temperature and you want it back at 375°F before the next round.
For wings that shatter when you bite them, fry twice. The first fry, gentler, cooks the meat through and renders most of the fat out of the skin. Let them rest for a few minutes, then a short second fry at 375°F blisters the surface into glass. It is the single biggest upgrade you can make, and it is how a lot of your favorite wing spots do it. Two safety rules matter here: never fill the pot more than halfway with oil, and dry the wings well so they do not splatter.
Getting there without a fryer
You do not need a vat of oil. Oven wings get remarkably close with three moves: dry, salted skin, a toss of aluminum-free baking powder (about ½ teaspoon per pound, which raises the skin’s pH so it browns like fried skin), and a wire rack set over the sheet pan so hot air reaches the underside. Bake at 425°F (220°C) for 40 to 50 minutes, flipping once, and push to 450°F for the last few minutes if you want more blister.
An air fryer is really a small convection oven, and it does wings beautifully: 380°F (193°C) for about 24 minutes, shaking the basket every 6 minutes so nothing sits in a soft spot. On a grill, build a two-zone fire, cook the wings over the cooler side until nearly done so the rendering fat does not torch them, then finish over direct heat to crisp and char.
How done is done, and when to sauce
The USDA safe minimum for all poultry is 165°F (74°C), so a wing that reaches it is safe to eat. But wings are not lean breast meat, they are skin and connective tissue over small bones, and they taste better pulled a little higher, around 175 to 185°F (79 to 85°C). In that range the fat renders and the collagen softens, so the wing gets juicier and more tender rather than drying out. You have a wide, forgiving window.
Save the sauce for the very end. Toss the wings in it off the heat, right before they hit the table. Sauce added while they cook burns, especially anything with sugar or honey, and it softens the crust you spent the whole cook building.