Combine the molasses, chipotle sauce, Worcestershire and garlic in a small bowl.
Place a wire rack inside a shallow, rimmed baking sheet and coat both with nonstick spray. Arrange the wings upside down on the rack in a single layer. Season lightly with salt and pepper, then brush with about 1/3 of the molasses sauce.
Turn the wings over, season again, and brush with molasses sauce, reserving about 1 tablespoon to add after a some time in the oven.
Roast the wings for 8 minutes, remove, brush with the remaining sauce and return to the oven for 10 to 12 minutes longer. Allow to cool slightly before serving.