Preheat the oven to 250d and place a baking tray inside.
Prepare flax egg by whisking water and ground flax together. Set aside to gel.
In a large glass measuring cup mix milk and apple cider vinegar together. Allow it to sit for 5 minutes before adding vanilla, maple syrup and spirulina. Whisk mixture until spirulina is well mixed.
Add wet to dry and mix well. Set aside to rest while your pan or griddle heats up.
Spray or grease a non stick pan. Use an ice-cream scoop or ladle to measure out batter. Cook until bubbles start to appear. Flip and cook for 1-2 minutes more. Place cooked pancakes in a preheated oven until all pancakes are cooked.
*Macros are provided as an estimate for convenience. Your final numbers will vary depending on ingredient brands, substitutions, and how you portion the recipe.