Melt the coconut oil in a large mixing bowl in the microwave.
Stir in the sugar, eggs, vanilla, pumpkin puree, and milk.
Add the flour, pumpkin pie spice, baking powder, baking soda, and salt.
Stir until the batter is combined.
Turn on the waffle iron and allow to preheat.
Spread a scant 1/4 cup of batter over the bottom of the hot iron and close the lid. If using the waffle iron linked to this recipe, wait for the light on the top to shut off. This indicates that the waffle is cooked through.
Place cooked waffles on a cooling rack to cool or serve immediately.