Divide masa evenly between 8 corn husks placing dough in the middle of the smooth side of each corn husk. Shape into a rough 4-inch square. Leave about a 1-inch border around the dough. Divide the filling evenly between the corn husks placing it in a a lengthwise line down the center of the masa square. Place fingers under the edges of the tamale and fold one side over the other so the masa dough covers the filling. Tie the ends of each tamale with corn husk strips. Steam for 30 minutes.