Poke holes in chicken with a toothpick and rub oil on and sprinkle the chicken with garlic powder, onion powder, Rosemary, sage, paprika, salt and pepper and place slices of butter on top and bake for about 1 hour occasionally rotating pan and basting till chicken is nice and golden and crispy or till a meat thermometer in the thickest part reaches 165 to 170. Let chicken rest at leat 10 min before carving into.