Cream together the butter and brown sugar in a large bowl until fluffy, about 3 minutes.
Beat in the egg and molasses until well combined.
In another bowl, whisk together the flour, ginger, cinnamon, baking soda, cloves, and salt.
Gradually mix the dry ingredients into the wet ingredients until a soft dough forms.
Divide the dough into two portions, wrap in plastic wrap, and chill for at least 2 hours or overnight.
Preheat oven to 350°F and line baking sheets with parchment paper.
Roll dough out on a floured surface to ¼-inch thickness and cut into desired shapes using cookie cutters.
Bake for 10-12 minutes until edges are firm. Cool on the pan for 3 minutes, then transfer to a cooling rack. Decorate with royal icing when completely cool.