Cook The Book: Sweet Potato Waffles

Directions

1. 1
   Put the sweet potatoes in a steamer basket and put the steamer in a large pot of simmering water that is 1 inch from the bottom of the basket. Cover and steam over medium-high heat for 20 minutes, or until the sweet potatoes are fork tender.
2. 2
   Remove the steamer basket, pour the water out of the pot, and dump the sweet potatoes into the pot. Mash with a potato masher.
3. 3
   In a large mixing bowl, combine the sweet potatoes, milk, brown sugar, butter, and orange zest.
4. 4
   Sift together the flour, baking powder, and salt and add to the sweet potato mixture. Stir to incorporate but do not overmix; there should be lumps remaining in the batter.
5. 5
   In a separate bowl, using an electric hand mixer, beat the egg whites until stiff peaks form. Fold the egg whites into the batter one third at a time. The batter will be thick. Using a disher (appropriate to your waffle iron's capacity), pour the batter onto a heated, oiled waffle iron and cook until lightly browned, 5 to 6 minutes. Serve hot.