How to Make It
In a turkey deep fryer, heat the oil with the garlic halves and rosemary to 350° following the manufacturer's instructions; discard the garlic and rosemary. Put the turkey on a rack set over a rimmed baking sheet and thoroughly dry it inside and out with paper towels.
In a small bowl, mix all of the remaining seasonings. Gently separate the turkey skin from the breast meat and rub some of the spice mix under the skin. Rub the remaining spice mix all over the outside of the turkey.
Following the manufacturer's instructions, carefully lower the turkey into the hot oil. Fry the turkey for about 3 1/2 minutes per pound, until an instant-read thermometer inserted in the thickest part of the breast registers 160°. Carefully transfer the fried turkey to a clean rack set over a rimmed baking sheet and let rest for 1 hour. Carve and serve.