Pumpkin puree gives waffles moisture and fall flavor, but that extra moisture can make crisp edges harder to get. Adding cornstarch to the batter helps solve that problem.
A generous tablespoon goes in with the flour, baking powder, baking soda, and spices. Cornstarch helps the outside develop a crisp texture while pumpkin puree and club soda keep the center soft and light.

Add Cornstarch With the Dry Ingredients
Start by whisking pumpkin puree, applesauce, egg, and vanilla in a bowl. Add club soda or seltzer water and mix until combined.
Flour, cornstarch, baking powder, baking soda, and spices go in next. Whisk just until the dry ingredients disappear into the batter.
Avoid working the batter more than needed once the flour goes in. Overmixing can work against the texture you want from a waffle.
Club Soda Helps Keep the Center Light
Cornstarch handles part of the exterior texture, while carbonated water serves another purpose inside the waffle.
Club soda or seltzer adds liquid without weighing down the batter as much as some alternatives. The carbonation helps create a lighter interior against the crisp surface.
If the batter seems too thick, add a little more club soda until it reaches a consistency that pours into the waffle iron without becoming runny. Milk can replace the carbonated water, but the waffles may not come out as light.

Pumpkin and Applesauce Add Moisture Without Butter
Pumpkin puree and applesauce bring moisture to the batter, while applesauce also adds some sweetness. The recipe doesn’t need added butter or oil in the batter.
Pumpkin pie spice and cinnamon supply the warm spice notes, while toppings can handle any extra sweetness. Maple syrup, honey, powdered sugar, pecans, or walnuts all work after the waffles come out of the iron.
Keep Finished Waffles Crisp
Putting cooked waffles on a plate in a stack can trap steam and soften the surfaces you just worked to crisp.
If you’re making several batches, transfer finished waffles to a warm oven until the rest are done. This keeps them warm without letting as much trapped moisture soften the outside.
Cornstarch isn’t the ingredient I expected to matter in pumpkin waffles, but it addresses the exact problem pumpkin can create. You still get a moist, spiced center, while the outside has the crisp edges I want from a waffle.
Do you add cornstarch to waffle batter, or have you always made waffles without it?
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