Combine the buttermilk, ricotta cheese, applesauce, vanilla, and zest in a bowl. Mix well.
In another bowl, combine flours, sugar, baking soda, baking powder, cinnamon, and salt. Mix well.
Gently incorporate the wet ingredients into the dry ingredients. Mix just enough to combine. Beat egg whites until soft peaks form. Add to pancake mixture. Gently fold blueberries into the pancake mixture. Overmixing will make the pancake tough.
Lightly spray the pancake griddle. Pour ¼ pancake batter on griddle, 1/4 “ thick. Let cook until golden brown and the edges start to set. Flip and cook on the other side.