2. Heat a large frying pan over medium high heat. Sprinkle pork on all sides with salt, pepper, onion and garlic powder; rub into meat. Sear the meat on all sides until lightly brown. Transfer to a cast-iron skillet.
3. Place onion slices over meat and in the cast-iron skillet. Fill skillet 2/3 full of water. Place in preheated oven for 4 hours. Remove and let stand at least 10 minutes before shredding with two forks.
