1. In a large bowl, combine flour, flax, sugar, baking powder, salt, cinnamon, and nutmeg.
2. In a medium bowl, lightly beat together egg yolks, milk and oil.
3. Add liquid ingredients to the dry, and stir until just combined.
4. Add shredded apple, add to batter; stir until just combined.
5. Fold in beaten egg whites.
6. Lightly spray griddle with cooking spray and preheat to medium heat.
7. Using a 1/3 cup measure, pour batter onto pan.
8. Cook pancakes until bubbles appear on surface, about 1 minutes.
9. Turn over and brown other side.