Put chicken on vertical roaster.
Smear with butter/herbs de provence/salt/pepper
Sear at 450 ˚F for 15 minutes
Cook at 350 ˚F for 16 minutes per pound (minus 15 initial time)
Finish at 450 ˚F for 10 minutes
4 lb chicken: cook time= (16*4)-15= 49 minutes
5 lb chicken: cook time= (16*5)-15= 65 minutes
6 lb chicken: cook time= (16*6)-15= 81 minutes
