Using a high speed blender, add the oats, buckwheat flour, and ground flaxseeds, until a flour forms (about 30 seconds).
Add remaining ingredients and blend again until there are no clumps. You might need to scrape the sides down with a spatula.
Spray a non stick skillet or cast iron skillet with oil, over medium heat.
Spoon about 2 tb of batter into the skillet, creating a 4 inch pancake, repeating with more batter but giving enough space so you don’t crowd them!
After about one minute or so, flip to the other side. Repeat until all batter is finished.
Serve with fresh berries and a drizzle of maple syrup.