Once the holes for the filling are then closed off, and the dumplings are boiled for anywhere between 10 to 60 minutes, depending on the thickness of the dough9. Sometimes kroppkakor are boiled in salt water for its taste13. Often, the butter is loaded into the center of the dumplings along with the filling so it will melt during the cooking process11. These dumplings are meant to be served immediately after they are cooked8.
