In a large mixing bowl, whisk together the shredded apple, low-fat milk, melted butter and egg until well combined.
In a separate bowl, sift together the whole wheat flour, baking powder, ground cinnamon, and a pinch of salt if desired.
Gently fold the dry ingredients into the wet apple mixture using a spatula, stirring until just combined. Do not to overmix.
Preheat a griddle or non-stick frying pan over medium heat. Lightly grease with cooking spray or a small pat of butter.