Cut pork into 2 inch cubes. Marinate pork cubes under the sliced onions. Press down on the onions, to produce the juice. Leave marinating overnight.
Fry all sides of the meat to golden brown. Add cubed onions and sliced carrots to the meat. Saute until golden brown.
Add white beans and hot boiled water. Lower heat to medium-low. Cook for an hour and a half. You may need to add more water as you cook the soup, as beans do tend to absorb water as they are cooking.