Ingredients:
1 cup whole wheat flour
1 cup all-purpose flour
1 1/2 teaspoons baking powder
1/2 teaspoon salt
1/4 teaspoon baking soda
2 cups skim milk buttermilk ( fat free)
1 large eggs, separated
1 tablespoon vanilla extract
1 tablespoon canola oil, plus
more canola oil, for greasing the waffle iron
2 large egg whites
2 tablespoons sugar
Directions:
In a large bowl, stir together flours, baking powder, salt, and baking soda.
In a separate bowl, whisk together buttermilk, egg yolk, vanilla, and oil.
Add to the dry ingredients and stir with a wooden spoon until just moistened.
In a grease-free mixing bowl, beat the 3 egg whites with an electric mixer until soft peaks form.
Add sugar and continue beating until stiff and glossy.
Whisk 1/4 of the beaten egg whites into the batter.
With a rubber spatula, fold in the remaining egg whites.
Preheat waffle iron.
Brush the surface lightly with oil.
Fill the iron 2/3 full.
Cook for 5-6 minutes, or until the waffles are crisp and golden.
Repeat with the reamaining batter, brushing the surface with oil before cooking each batch.
Servings: 8
Time preparation: 15 min.
Time total: 40 min.