01 - Preheat the oven to 350°F. Grease and flour a 9x13-inch baking pan.
02 - In a medium bowl, whisk together flour, ground ginger, cinnamon, cloves, nutmeg, baking soda, and salt until evenly mixed.
03 - In a large bowl, beat softened butter and brown sugar until light and fluffy.
04 - Add eggs one at a time to the creamed mixture, mixing well after each addition. Then blend in molasses and vanilla extract.
05 - Gradually fold the dry ingredients into the wet mixture until just combined.
06 - Stir in hot water until the batter is smooth and homogenous.
07 - Pour the batter evenly into the prepared baking pan and spread smoothly.
08 - Bake for 30 to 35 minutes, or until a toothpick inserted into the center comes out clean.
09 - Allow the cake to cool in the pan for 10 minutes before transferring to a wire rack to cool completely.