Prepare chicken by sliding several rosemary springs underneath skin of chicken (breasts and thighs are good locations for this). Heavily salt and pepper skin and massage to ensure good coverage. Pour 1/2 of a beer into compartment on roaster (or you can just drink/dispose half of a can of beer) and place several springs of rosemary inside. Humiliate the chicken by properly fitting the beer can compartment into the cavity (or onto the beer can) of the bird.
Grill using indirect heat (seen above) for @ 1- 1.5 hours or until the chicken reaches the internal temperature of 180*F.
This recipe/method is not only fail safe and easy, but the chicken was AMAZING! No wonder people swear by it. The amount of moisture and flavor from the beer is unbelievable. Run home right now and throw a bird on a beer!