In a large bowl, whisk together flours, flaxseed, sugar, baking powder, baking soda and salt. Add buttermilk, egg and butter and whisk until just moistened (it will have some lumps but don't over mix). If adding fruit or chocolate chips, fold into batter.

Spray a large griddle with cooking spray and heat over medium-high heat. In batches, drop batter by 1/4 cupfuls into skillet. Cook until bubbles appear on top. Flip and cook until golden brown.

Repeat with remaining batter, wiping skillet clean between every other batch and lowering heat if necessary. Serve with low-sugar maple syrup and enjoy!