In a bowl, whisk together flour, brown sugar, baking powder, baking soda, cinnamon, ginger, salt, nutmeg and cloves. Set aside. In another bowl, whisk together buttermilk, eggs, molasses and butter. Pour buttermilk mixture into flour mixture and stir until well combined.
Fill a greased waffle iron with approx. 1/2 cup (125 mL) of batter per waffle. Cook until golden and cooked through, about 3 min. per waffle. Repeat until all batter is used up. Serve with maple syrup.
Make ahead: Mix up your batter and refrigerate the night before. Bring to room temperature before using.