In a large bowl combine flour, baking powder, cinnamon, ginger, nutmeg and salt. In a medium bowl, beat eggs and brown sugar until fluffy, then beat in pumpkin, milk, molasses and melted butter. Stir the wet into dry until just moist. Do not overstir the waffle batter. Oil the waffle iron with cooking spray or brush with melted butter and cook 4 waffles. Serve with toppings of choice.
Recipe adapted from: Ray, Rachael. "Gingerbread Waffles." Food Network.