Preheat oven to 350 degrees F. Coat 2 mini 6-by-3-inch loaf pans with cooking spray.Advertisement
Whisk whole-wheat flour, all-purpose flour, baking powder, baking soda, salt, cinnamon and nutmeg in a large bowl.
Whisk egg whites, sugar (or Splenda), applesauce, oil and lemon extract (if using) in a medium bowl. Stir in zucchini.
Make a well in the dry ingredients; slowly, mix in the zucchini mixture with a rubber spatula. Fold in walnuts. Do not overmix. Transfer the batter to the prepared pans.
Bake the loaves until a toothpick comes out almost clean, 40 to 45 minutes. Cool in the pan on a wire rack for about 5 minutes, then turn out onto the rack to cool completely.
Tip: To bring cold eggs to room temperature quickly: Place in a mixing bowl and set it in a larger bowl of warm water for a few minutes; the eggs will beat to a greater volume.
Storage smarts: For long-term freezer storage, wrap your food in a layer of plastic wrap followed by a layer of foil. The plastic will help prevent freezer burn while the foil will help keep off-odors from seeping into the food.
1 1/2 starch