In a large bowl mix together flour, cornstarch,sugar, pumpkin pie spice and baking powder.
In a separate bowl, beat eggs, melted butter, milk, vanilla extract and pumpkin puree until well blended.
Add liquid mixture to dry ingredients, stirring lightly with wire whisk until batter is combined.
Pre-heat your waffle iron, spray with non-stick cooking spray and then add one ladle full of batter and cook till lightly brown and crisp. Serve with your favourite syrup and fruit.
If you would like to freeze: cool waffles and then place in labeled freezer bag. You can reheat in your toaster oven or conventional oven at 350°F for 3-4 minutes.