In a small bowl, whisk the hot sauce, butter, rosemary and lemon zest.
Heat a gas grill to medium high or prepare a medium-hot charcoal fire. Season the wings with 1 teaspoon salt and 1/4 teaspoon pepper.

Rub the grill grate with oil. Grill the wings, covered on a gas grill or uncovered over a charcoal fire, flipping every couple of minutes, until they're browned and crisp and completely cooked through, about 20 minutes. If there are flare-ups, move the wings to another part of the grill. If the wings begin to burn at any point, reduce the heat to medium or transfer the wings to a cooler part of the grill.
As the wings are done, transfer them to a large bowl. Stir the sauce and toss with the wings. Serve immediately with your favorite blue cheese dip and plenty of napkins.