Preheat your oven to 350°F.
Grease a 9x13-inch baking pan.
Combine the flour, ginger, cinnamon, cloves, baking soda, baking powder, and salt in a bowl.
Whisk the brown sugar and melted butter together in a separate bowl.
Add the eggs and whisk until the mixture looks smooth.
Add the molasses and vanilla and whisk until fully combined.
Pour the hot water into the wet mixture and whisk gently.
Add the dry ingredients to the wet ingredients and stir until the batter is fully mixed.
Pour the batter into the prepared pan.
Bake for 35–40 minutes, or until the center springs back lightly when touched.
Cool the cake in the pan for at least 20 minutes.
Slice and serve warm or cooled.