Vegetable oil, for brushing
pounds chicken wings, split at the joints, tips removed
Kosher salt and freshly ground pepper
cup dijon mustard
tablespoons mustard powder
teaspoon finely grated garlic
Position racks in the upper and lower thirds of the oven; preheat to 450 degrees F. Brush 2 large baking dishes with vegetable oil. Pat the wings dry; sprinkle with 2 teaspoons salt and 1/2 teaspoon pepper. Spread in the dishes and bake, rotating halfway through, until golden, 40 to 45 minutes. Meanwhile, mix the dijon mustard, honey, mustard powder and garlic in a bowl. Remove the wings from the oven and toss with the mustard mixture, then continue baking until glazed, 3 to 5 more minutes.