Season the ribs liberally with kosher salt, then place the ribs in single layer in a large baking dish.
Combine the peppercorns and garlic in a small bowl and mash together with a spoon to form a coarse paste. Rub the pepper and garlic paste onto the ribs.
In a small bowl, combine the vinegar, soy sauce, bay leaves and jalapeno. Pour this mixture over the ribs, cover and refrigerate for at least 4 hours, turning ribs halfway through marinating.
When ribs are ready to cook, transfer the ribs and marinade to a large heavy pan. Bring the mixture and the water to a boil, then reduce to a simmer, cover, and cook until meat is tender, about 1 hour.