Banana Cupcakes with PB Frosting

This is a great recipe for using up that one extra banana that goes mushy before you can eat it.  In fact, the mushier the banana, the better taste in these cupcakes!  The frosting is AMAZING and can be used on lots of other cupcake bases - use your imagination :)

For 15-16 cupcakes:

6 Tbsp butter, room temp

1 1/4 c sugar

1 large very ripe banana

3 eggs

1/2 c buttermilk - I use Saco powdered buttermilk, which would be 2 Tbsp powder and 1/2c water

1 tsp vanilla

1 1/4 c flour ( + 1 or 2 Tbsp if your batter seems thin)

2 tsp. baking powder

pinch of salt

PB Frosting:

4 Tbsp butter, room temp

4 oz cream cheese, room temp

2 - 3 c powdered sugar

1/2 - 3/4 c smooth peanut butter

Preheat the oven to 350, and line 15-16 baking cups with liners.  Give each liner a spritz of Pam to ensure that the cakes don't stick.  

In the bowl of a mixer, cream the butter and sugar until light and fluffy.  Add the banana and mix to break up.  Add the eggs one at a time, scraping the sugar up in between eggs.  Add the buttermilk and vanilla and combine.  Mix in the baking powder and salt, then add the flour in 2 additions, scraping the bottom and sides of the bowl in between.  If the batter seems thin, add 1 or 2 Tbsp flour.  Fill the pans 3/4 full and bake for 18 - 22 min.  They are done when no batter sticks to a toothpick inserted in the middle.  Let cool for a few minutes in the pan, then move to a wire rack to finish cooling.

For the frosting:  in the bowl of a mixer, beat the butter until creamy.  Add the cream cheese and combine.  On low, beat in 2 cups powdered sugar.  Taste and check consistency.  If not sweet enough or if not thick enough, beat in another 1/2 cup or more of powdered sugar.  Finally, mix in the peanut butter and taste.  You can always add more PB :)    Either spread or pipe lots of frosting onto each cupcake when cool.  I store the cakes in a container on the counter and the frosting in the fridge, then frost each cupcake as I need to.