Place egg white in a small bowl; let stand at room temperature 30 minutes., Preheat oven to 375°. In a large bowl, beat lard until creamy. In another bowl, whisk flour, baking powder, cinnamon and salt; gradually beat into lard., Beat egg white on high speed until stiff peaks form. Gently whisk in sugar and egg yolk. Gradually beat into lard mixture. Turn onto a lightly floured surface; knead gently 8-10 times., Divide dough into 6 portions. On a lightly floured surface, roll each portion into a 24-in.-long rope; cut diagonally into 1-in. pieces. Place 1 in. apart on ungreased baking sheets. Bake 8-10 minutes or until edges are light brown. Cool on pans 2 minutes., In a small bowl, mix sugar and cinnamon. Roll warm cookies in cinnamon sugar mixture or confectioners' sugar. Cool on wire racks.