01 - Preheat oven to 350°F. Grease and flour a 9-inch square baking pan.
02 - Whisk together flour, ground ginger, cinnamon, cloves, nutmeg, baking soda, and salt in a large bowl.
03 - Using an electric mixer or whisk, cream the softened butter and brown sugar until light and fluffy.
04 - Beat eggs one at a time into the butter mixture. Add molasses and vanilla extract and mix thoroughly.
05 - Add dry ingredients in three parts to the wet mixture, alternating with buttermilk, beginning and ending with dry ingredients.
06 - Slowly mix in hot water until batter achieves a smooth consistency.
07 - Pour batter into the prepared pan and smooth the surface evenly.
08 - Bake for 32 to 38 minutes until a toothpick inserted in the center comes out clean.
09 - Allow cake to cool in the pan for 15 minutes before turning out onto a wire rack to cool completely.
10 - Serve plain or garnish with powdered sugar or whipped cream as desired.