Foreign (pork) and native (bean curd and bean paste) elements combine to make a flavorful, uniquely Japanese soup. It’s very good with vegetable and egg dishes.
Cut the pork into ¼-inch cubes and place them in a pot with the kelp and water. Bring it to a boil over high heat, discard the kelp and skim the froth from the surface. Lower the heat, season with the soy sauce, salt and rice wine and simmer uncovered for 20–30 minutes, or until the pork is very tender