Bake the oven to 350 degrees
Sift the cake flour, baking powder, baking soda, and salt, set aside
Mash the bananas using a fork or food processor
Mix the softened unsalted butter and sugar for about 1 minutes using a stand mixer or hand held mixer
Add the eggs, vanilla extract, flour mixture, buttermilk, and pureed bananas to the sugar mixture and mix until well incorporated, careful not to over mix.
Spoon batter into prepared muffin cups, filling them about 3/4 full.
Bake for 20 minutes or until fully cooked through
Cool cupcakes completely before frosting
To make the frosting, mix the cream cheese and butter for about 3 minutes
Add the powdered sugar, milk, and vanilla extract and mix for about 3 minutes on high speed
Using a piping bag frost your cooled cupcakes and enjoy