Combine dry ingredients, then mix in sour cream, milk, eggs, vanilla, and bananas. Stir in melted butter.
2 Let batter stand for 10 minutes to activate baking powder. Skipping this step will make pancakes flat.
3 Preheat griddle to medium heat. Spray or brush with butter.
4 Pour 1/3 cup batter for each pancake and cook about 3 minutes per side or until golden.