2 1/2 cups all-purpose flour
1/3 cup packed light brown sugar
2 1/4 teaspoons baking powder
1 teaspoon baking soda
1/2 teaspoon salt
2 teaspoons ground cinnamon (or pumpkin pie spice, I used one ts. of each)
4 large eggs
2 cups milk
1 cup canned solid-pack pumpkin
3/4 stick (6 tablespoons) unsalted butter, melted
Vegetable oil for brushing waffle iron or cooking spray
Preheat oven to 250°F and preheat waffle iron. Sift together flour, brown sugar, baking powder and soda, salt, and spices. Whisk eggs in a large bowl with milk, pumpkin, and butter until smooth. Whisk in dry ingredients just until combined
Brush waffle iron lightly with oil and spoon batter into waffle iron. Drop lid and cook until golden brown.
Transfer waffles to rack in oven to keep warm and crisp, while making the rest of the waffles.