Combine Dry : In a large bowl, whisk together the whole wheat flour, baking powder, baking soda, Sucanat, nutmeg, and sea salt.
Combine Wet : In a separate medium bowl, whisk together the milk, cottage cheese, egg yolk, vanilla, and lemon zest.
Mix Batter: Pour the wet into the dry and mix gently until just combined.
Do not overmix; a few lumps are perfectly fine.
Whip Egg Whites: In a clean bowl, use an electric mixer or a whisk to beat the 3 egg whites until stiff peaks form.
Fold and Finish: Gently fold the beaten egg whites into the batter until just incorporated. The batter will be thick, lumpy, and airy.
Cook the Griddlecakes: Heat a non-stick griddle or large skillet over medium-low heat and lightly grease with coconut oil or cooking spray. Scoop about ⅓ cup (80 ml / 2.7 fl oz) of batter onto the griddle for each pancake.
Flip and Serve: Cook for 4 to 5 minutes, or until the top is full of bubbles and the edges look dry.
Flip and cook for 1 to 2 minutes more, until golden brown.
Serve immediately or keep warm in a 200°F (90°C) oven.