Cut the pork into appropriate pieces.
Season the meat with salt and pepper.
Place the pork, onion, and garlic in an oven or pot.
Pour in barbecue sauce and water, then cover with a lid.
Cook in a 150°C oven for 3 hours.
Shred the pork finely with a fork.
Mix the shredded pork with the sauce and cook for 10 more minutes.