In a bowl combine dry ingredients: flour, baking powder, baking soda, salt, and sugar.
Pour milk into a 1 cup measuring cup.
Add to the milk the beaten egg, maple syrup and vanilla extract.
Make a well in the center of the dry ingredients.
Pour wet ingredients into the well, stirring to mix. Batter may have lumps.
Pour in melted butter, stir to combine.
Add in mashed banana.
Heat a skillet over medium high heat.
In the skillet melt 1 tablespoon butter and coat pan.
Pour batter 2-3 tablespoons at a time into center of pan.
Cook pancake on one side until bubbles begin to show on the top of the pancake.
Flip pancake over and cook for another 2-3 minutes, or until brown on the second side.
Continue to cook pancakes until all batter is finished.
Serve with fresh sliced banana, maple, syrup, and butter.