Preheat oven to 350 degrees.
Gather your ingredients.
Prepare cast iron skillet by rubbing with butter and sprinkling with flour.
In a medium bowl combine your dry ingredients: flour, baking soda, salt, ginger, and cinnamon.
In separate bowl combine: softened butter, brown sugar , molasses and hot water.
Mix until butter is almost melted.
Add the egg and vanilla extract to the wet ingredients.
Slowly combine the wet and dry ingredients until batter is free of lumps.
Pour batter into prepared skillet.
Bake for 30-35 minutes, or until toothpick comes out clean.
Let cool and cut into 12 equal slices.
Serve with fresh whipped cream and berries. Or try it topped with some homemade vanilla ice cream.