Clean spud and leave wet, use Saran Wrap or any other type of microwaveable safe stuff, 7 minutes in the nuker for a good sized Russet; golds or Reds may take a bit less time. And voila, Bob's yer Unkl an yer tater is baked.
Or, in foil over a grill, rubbed and seasoned but the campfire special with them wrapped in some broad leaf and cooked in the coals is always a favorite. IMO only ....
Casul gave me a good recipe, it sure was good. Casul did your momma teach you that