Normally, this would be the point in the post where I tell you to get yourself together and go to the store, but this recipe is so easy you probably already have everything on hand. Go check, because you will need:
1 1/2 c. sugar
1/4 tsp. baking powder
4 ripe bananas
1/2 c. softened butter (not melted)
1/2 tsp. baking soda
1 tsp. vanilla
1 1/2 c. flour
Cream together the butter and sugar. Add the eggs, mixing until well blended. Slowly add the dry ingredients so as not to make a giant mess on your counter tops. In a blender, blend together bananas and vanilla until it is pureed. Add this to the mixing bowl, and give it a stir. Pour into muffin tins, and bake at 375 for about 15 mins, or until muffins are a dark golden brown and cooked through out.
Eat them hot with a little butter, and try to control yourself, because they really are that good.