In a small bowl, mix the butter together with one of the packets of seasoning mix until well blended.
With clean hands, carefully separate the breast skin from the breast by moving your hand underneath the skin. Spread the butter mixture evenly under the skin. Sprinkle the remaining packet of seasoning mix all over the turkey.
Roast the turkey covered for 3 hours, then uncover and cook for another 30 minutes or until juices run clear and an internal temperature of 165°F is reached.