Using a pastry brush, brush both sides of the turkey thighs with melted butter.
Mix together salt, garlic powder, pepper, rosemary, sage, thyme and paprika. Rub seasoning mixture over both sides of the thighs.
Drizzle with any remaining butter. Transfer to a roasting pan. Cook for 20 minutes at 400 degrees. Reduce heat to 325 and continue to cook for 1 - 1 1/2 hours or until a meat thermometer inserted reaches 175 degrees. Spoon pan juices over the top every 30 minutes. Note: If you notice the skin getting too crispy, loosely cover the thighs with aluminum foil.
Remove turkey thighs from the oven, allow to rest for 10 minutes. Carve and serve.
After feedback and more testing, this recipe was modified to reduce the cooking from from 2 hours to 1 - 1 1/2.Be sure to let the turkey thighs rest before slicing. This helps them stay juicier. Nutrition facts for estimation purposes only.