Press the garlic through a garlic press or chop very fine. Soften the coconut oil in the microwave for a few seconds if necessary. Mix the coconut oil with the garlic and a big pinch of the salt. Set aside.
Rub the remaining salt inside the empty cavity of the chicken. Stuff the thyme in the cavity.
Rub the outside of the chicken with the coconut oil and garlic mixture.
Roast for 2-3 hours until golden and at least 160 degrees. Cool for 10 minutes before carving.