01 - In a large bowl, beat the butter and brown sugar together until light and fluffy.
02 - Add molasses, egg, and vanilla extract to the creamed mixture and mix until thoroughly combined.
03 - In a separate bowl, whisk the flour, ground ginger, cinnamon, cloves, nutmeg, baking soda, and salt until evenly blended.
04 - Gradually incorporate the dry ingredients into the wet mixture, blending until a soft dough forms.
05 - Divide dough into two portions, flatten into disks, wrap each in plastic wrap, and refrigerate for at least one hour.
06 - Preheat oven to 350°F (175°C) and line baking sheets with parchment paper.
07 - On a lightly floured surface, roll chilled dough to 1/4-inch thickness and cut into gingerbread men with a cookie cutter.
08 - Place cookies 1 inch apart on the prepared sheets and bake for 8 to 10 minutes, until edges are set.
09 - Allow cookies to cool on baking sheets for 5 minutes before transferring to a wire rack to cool completely.
10 - Combine powdered sugar, meringue powder, and water; beat until smooth, thick, and pipeable, adding water gradually. Add food coloring if desired.
11 - Use a piping bag or small zip-top bag to decorate cooled cookies with icing. Let icing harden before serving or storing.