Mix together all the dry ingredients i.e oats flour, baking powder, atta, cinnamon powder and set aside
Using a blender or fork depending on how ripe your banana is mash it well. Add one egg, buttermilk and melted butter and whisk till smooth.
Mix dry ingredients and wet ingredients together till well mixed.
Heat a cast iron pan or tawa and brush it with butter. Drop a laddle full of batter on the hot tawa. Do not spread as it will spread itself, if it is not spreading add a few spoons of milk to the batter before pouring the next pancake
When the bubbles start forming on top, flip the pancake and cook till lightly brown.
Serve warm with honey, maple syrup, jam or anything you have at hand.