Mix dry ingredients, then add all wet ingredients except egg white and mix until just combined.
Whisk egg white at least until frothy (can go as far as beating it to stiff peaks), then fold it into pancake batter.
Heat griddle over medium heat and grease with coconut oil. Add pancake batter to form 3-4" pancakes and cook until top begins bubbling. Flip and finish cooking until golden brown.
Top with additional lemon zest, powdered sugar, lemon curd or maple syrup if desired.