01 - Preheat your waffle iron following the manufacturer's instructions.
02 - In a large bowl, whisk together flour, brown sugar, baking powder, baking soda, salt, ginger, cinnamon, cloves, and nutmeg until evenly combined.
03 - In a separate bowl, beat the eggs, then add milk, molasses, melted butter, and vanilla extract; whisk until smooth.
04 - Pour wet ingredients into the dry ingredients and stir gently until just combined; slight lumps are acceptable to avoid overmixing.
05 - Lightly grease the waffle iron with oil or nonstick spray.
06 - Pour approximately 1/2 to 3/4 cup batter per waffle onto the preheated iron; cook according to manufacturer's instructions until golden brown and crisp, about 3 to 5 minutes.
07 - Place cooked waffles in a low oven set to 200°F (95°C) to keep warm while cooking remaining waffles.
08 - Serve waffles hot with warmed maple syrup; optionally top with whipped cream and toasted pecans.