My wings already came pre-cut into wingettes and drumettes, but if they are not, remove the wing tip then cut them vertically through the joint. Discard the wing tip.
All ovens are different so if your wings aren't golden and crispy after 40 minutes, turn the broiler on and broil them for about 3 more minutes, watching them carefully as they could burn quickly. If your oven has a roast function, you can use the roast function and roast the wings at 375 F for 20 minutes, brush them with the blue cheese dressing then bake for another 10 minutes. After 30 minutes they should be golden brown and crispy.