Step 1: In a large bowl, mix together the flour, sugar, baking powder and salt.
Step 2: Melt the butter on low to medium heat, and smush your banana in a small bowl.
Step 3: Combine the milk, butter and eggs, and stir. Then add the banana and mix it all together.
Step 4: Combine the wet and dry ingredients, and stir well.
Step 5: Heat the same skillet that you used to melt the butter, and then scoop the pancake mixture into it. Cook until the pancakes have some bubbles, then flip carefully.
Step 6: Serve hot, and enjoy.