Fill each cupcake liner with 1/4 cup of batter. Place on middle rack of preheated oven and bake for 17-20 minutes or until a toothpick inserted comes out clean. Remove from oven and let cool completely before frosting
For the cream cheese frosting
In a large mixing bowl whip butter and cream cheese together for 3-5 minutes until light and fluffy. (Make sure they are both softened or it will be lumpy)
Add 3 cups of confectioner sugar and mix well. If frosting still seems soupy add more confectioner sugar until a spreadable consistency is achieved.