In a medium bowl, mix oat flour, maple sugar, baking powder, and salt.
In a small bowl, whisk together buttermilk, vanilla, and eggs. Add wet mixture to dry oat mixture and stir together. Allow to sit for 5 to 10 minutes.
Heat a griddle or large skillet over medium heat. Add a tablespoon of unsalted butter and swirl till melted and coating cooking surface.
Add pancake batter (each should be ~ ¼ cup cup of batter) and cook until bubbles form on top. Flip and cook another 2 minutes.
Serve with maple syrup, butter, jam, or fresh fruit.
Video
Notes
Note: To make oat flour, simply place rolled oats in a food processor or blender and process until broken down to a more flour-like consistency. Plain instant oatmeal can also be used.