Combine dry ingredients in a separate bowl. Whisk to blend. Add these dry ingredients to the creamed mixture alternately with the hot water, beginning and ending with the flour mixture.
Pour into greased and floured 9 inch square pan. Bake at 350 degrees F for 30-40 minutes or until an inserted toothpick comes out clean (or with just a few moist crumbs attached).
This gingerbread tastes amazing just as it is. You can also top with a dusting of powdered sugar, a drizzle of caramel, a dollop of whipped cream, and more!