Whip butter, oil and sugars together until fluffy, 2 minutes. Mix in egg, vanilla and grated zucchini. Carefully mix in all dry ingredients until incorporated. Scoop onto greased cookie sheet and bake 7-9 minutes at 350. Delicious warm, or cooled.
For the Icing:
Mix all ingredients together in small bowl until smooth in consistency. Decorate with red sprinkles.
Notes
-If you don't care so much about these being healthy, then you can substitute 1 whole egg for the egg whites and you can use all white (all-purpose) flour instead of whole wheat flour.