In a large bowl, beat brown sugar, shortening, molasses and water with an electric mixer on medium speed until well blended. (It may appear a bit separated/lumpy, that is fine!)
Stir in the remaining ingredients until well incorporated.
Separate the dough 2 or 3 times. Wrap each dough ball in cling film and refrigerate for at least 2 hours, or preferably overnight.
Preheat oven to 350 degrees F. Line baking sheets with parchment paper or a silicone baking mat.
On a floured surface, roll dough 1/4 inch thick. Cut dough with a floured gingerbread cookie cutter.
On the baking sheet, place cookies about 2 inches apart.
Bake for up to 10 minutes, until cookies become light in color. Allow cookies to cool on the baking tray until they can hold their shape before moving them onto a cooling rack. Cool for at least 30-60 minutes before decorating.*