1: Mix all of your dry ingredients (flour, sugar, baking powder, baking soda, pumpkin pie spice, and kosher salt) in one bowl and all of your wet ingredients (buttermilk, pumpkin puree, eggs, and melted butter) in another bowl.
2: Pour the wet ingredients into the dry ingredients and combine well. The batter will be thick and clumpy.
3: Cook your waffles on a waffle press for 4-6 minutes on medium high heat.
4: Top your waffles with whipped cream, syrup, pumpkin pie spice, and any other toppings you enjoy.
5: Enjoy your pumpkin spice waffles!