Combine the flours, ground flaxseed meal, sugar, salt, baking soda and baking powder in a large mixing bowl.
In another mixing bowl, whisk together buttermilk, oil and egg replacer mixture.
Add the wet ingredients to dry ingredients and mix until well combined, a few lumps are fine.
Let the batter sit for 15 minutes to thicken slightly.
Heat a griddle on medium heat and spray with non-stick cooking spray. Scoop about ¼cup of the batter onto the hot surface. Cook the pancakes for 2~3 minutes, once the bubbles start to form the surface, flip it and cook for another 1~2 minutes, or until nicely browned.