gingerbread waffles

3/4c pumpkin
1 1/4c milk
4 eggs, yolks and whites separated
6Tbsp canola oil
2/3c brown sugar
1/4c molasses
2tsp cinnamon
2tsp ginger
1/2tsp nutmeg
1/2tsp salt
4tsp baking powder
3c flour
In a large bowl, combine pumpkin, milk, egg yolks, canola oil, brown sugar, and molasses. Sift cinnamon, ginger, nutmeg, salt, baking powder, and flour over top. Stir to combine well. If the mixture seems a bit thin, add 1-2 Tbsp extra flour. In a medium or large glass or metal bowl, whip egg whites until stiff peaks form. Fold whipped egg whites into the batter gently.
Cook according to waffle-iron instructions.