To assemble the humitas, place one corn leaf over the other, overlapping by around one inch. Place 3/4 to 1 cup of the cooked corn mixture in the center of the leaves. To close the humita, fold the sides of the leaves first, from the left and the right. Afterward, fold the top and bottom sides down to form a rectangular package. Secure the leaves with (cotton) kitchen string around the center. The finished package should resemble a bow-tie, or humita.