01 - Beat butter and brown sugar together in a large bowl until light and fluffy. Incorporate molasses and egg, mixing until homogeneous.
02 - Whisk flour, ground ginger, cinnamon, cloves, nutmeg, baking soda, and salt in a separate bowl until evenly blended.
03 - Gradually add dry ingredients to the wet mixture, blending to form a soft dough.
04 - Divide dough in half, shape each into a disk, wrap in plastic wrap, and refrigerate for at least one hour.
05 - Preheat oven to 350°F. Line baking sheets with parchment paper.
06 - On a lightly floured surface, roll dough to 1/4-inch thickness. Cut into shapes with cookie cutters.
07 - Place cut cookies 1 inch apart on the prepared sheets.
08 - Bake for 10 to 12 minutes until edges are firm. Let cool on baking sheets for 5 minutes, then transfer to wire racks to cool completely.
09 - Combine powdered sugar and meringue powder in a bowl. Gradually add warm water while beating with an electric mixer until stiff peaks form (about 4 minutes). Adjust consistency if necessary. Add food coloring if desired.
10 - Transfer icing to piping bags and decorate cooled cookies. Allow icing to set before serving or storage.