Preheat a waffle iron.
In a medium bowl, combine the flour, baking powder, baking soda, salt and spices. Set aside.
In another bowl, combine the eggs, pumpkin pureé, buttermilk, brown sugar, canola oil and vanilla. Whisk until the mixture is very smooth.
Stir the dry mixture into the pumpkin mixture just until smooth. Be careful not to over-mix the batter. It feel fluffy.
Spray the waffle iron with non-stick spray or coat it with additional olive oil. Cook waffles according the the waffle maker’s directions.
Serve with maple syrup, toasted pecans, honey yogurt, sliced apples, whip cream, or whatever you desire.