Beat the butter,eggs and sugar on high for about a minute.

Then you add the banana and mix again for another minute.

In a medium bowl add flour,baking powder and baking soda and mix well then add it to the wet ingredients and mix again for 1 minute then add the milk and mix again for about a minute more when done stir in the chocolate chips and put in paper lined muffin tins and bake for 1/2 an hour at 350.

When done and still hot brush the 3 tablespoons of melted butter on each muffin.