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Banana Cupcakes with Peanut Butter Frosting

Banana Cupcakes with Peanut Butter Frosting are a simple dessert made with fresh bananas and creamy peanut butter. When you’ve got a busy schedule and limited time for baking, there’s no easier cupcake recipe than this one.

Side view of 3 banana cupcakes with peanut butter frosting
Some days do you feel like you have dropped the ball on parenting?
Well, come to my house because it is happening now.
At this very moment.
Today has been a series of unorganized parenting blunders.
Let’s see…
My 7 year old wore a not-entirely-clean baseball uniform to his game.
Alright, it was dirty.
I dug it out of the hamper.
I meant to wash it.  Truly.
And there was the 2nd grade homework that I helped my kiddo complete.
It got returned as incorrect.
As in with big red “X”‘s on it.
Apparently 2nd grade math is a challenge for me.
Then there was dinner.
Sometimes cereal is appropriate for dinner, right?
I mean Lucky Charms has to have some sort of nutritional value…please say yes.
Then I caught my child in the corner with a spoon and a tub of sour cream.
Maybe it’s some sort of strange vitamin deficiency (see above) that’s causing this strange craving for dairy, or maybe he just has an odd obsession with sour cream…either way I’m thinking it can’t be good.
Adding to the day, we discovered a plant growing under the dishwasher in my kitchen.
I’ll say that again…a plant was growing UNDER MY DISHWASHER.
Last time I checked plants weren’t supposed to grow under there.
We are thinking that a lone seed from an “everything” bagel got trapped and sprouted.
I can’t keep a plant alive to save my life, yet rogue seeds grow on their own in entirely ridiculous places.
Note to self, remember to clean UNDER the dishwasher.
I feel very overwhelmed.
Maybe a cupcake will help.

Banana Cupcakes with Peanut Butter Frosting

Banana Cupcakes with Peanut Butter Frosting and chopped peanut butter cups
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Banana Cupcakes with Peanut Butter Frosting

  • Author: Cookies & Cups
  • Prep Time: 25 min
  • Cook Time: 15 min
  • Total Time: 40 min
  • Yield: Makes 24 1x
  • Category: Dessert
  • Method: Oven
  • Cuisine: American


Banana Cupcakes with Peanut Butter Frosting are a simple dessert made with fresh bananas and creamy peanut butter. When you’ve got a busy schedule and limited time for baking, there’s no easier cupcake recipe than this one.




  • 1/2 cup vegetable shortening
  • 1 1/4 cups sugar
  • 2 eggs
  • 1 tsp vanilla
  • 1 1/2 cups mashed ripe bananas
  • 1/4 cup buttermilk
  • 2 cups all-purpose flour
  • 1 tsp baking powder
  • 3/4 tsp baking soda
  • 1/2 tsp kosher salt


  • 1/2 cup butter, room temp (1 stick)
  • 1 cup creamy peanut butter
  • 6 cups sifted powdered sugar
  • 1/4 cup milk (you can add more if your prefer a creamier frosting)

Garnish *optional

  • Chocolate syrup for drizzle (I used Hershey’s)
  • Reese’s Peanut Butter cups, chopped



  1. Preheat oven to 350°
  2. Cream shortening and sugar together in mixing bowl.
  3. Add eggs, vanilla, buttermilk and bananas.
  4. Mix until combined thoroughly.
  5. On low speed add flour, baking powder, baking soda and salt.
  6. Stir together until combined.
  7. Line muffin pans and fill with batter about 2/3 full.
  8. Bake for 15-20 minutes until cupcakes are set and a toothpick comes out clean.
  9. Remove to wire rack and let cool completely before frosting.


  1. Combine butter and peanut butter and mix on medium speed until combined.
  2. Slowly add powdered sugar mixing until incorporated.
  3. Add milk slowly until desired consistency is reached.
  4. Pipe frosting on cooled cupcakes and garnish with chocolate syrup and chopped up Reese’s Cups (if desired)


  • Serving Size: 1 cupcake
  • Calories: 416
  • Sugar: 63.7 g
  • Sodium: 136.5 mg
  • Fat: 12.6 g
  • Carbohydrates: 74.3 g
  • Protein: 4.6 g
  • Cholesterol: 16.2 mg

Keywords: banana cupcake recipe, how to make banana cupcakes, peanut butter frosting recipe, how to make peanut butter frosting, peanut butter banana cupcakes, banana dessert recipe, best banana cupcakes

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Helpful tip… Out of buttermilk?

Buttermilk Substitution


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63 comments on “Banana Cupcakes with Peanut Butter Frosting”

  1. My family loves banana cake. Really would like to try this cupcake. My problem is that my oven is just small and could only hold the 6cupcake tray. Is it ok for the batter to sit still while waiting for a batch to be done? Also, can i use canola oil?

  2. I’d like to make your banana cupcakes but what would I use instead on vegetable shortening, or what would I substitute in Australia?

  3. Kim - Liv Life

    Just saw this beyond awesome photo on Pinterest and had to pop over to tell you how wonderful it looked even though I really don’t enjoy cupcakes. However, peanut Butter and banana are a favorite of my daughter and pb cups (your gorgeous topping) are a favorite of mine, so this recipe is a MUST try for us.
    But then I read your post, and you had me absolutely laughing out loud. Yes, my son wore the same slightly dirty uniform to his baseball game. It was even a little wet from a towel that had been thrown on top. I too can not handle 2nd grade math… now that they are in high school we have tutors that I pay handsomely to escape those red “X” marks across the top. Actually, it’s my kids who help me when I need to double or halve a recipe. The plant under the dishwasher though… I can’t top that! And yes, a cupcake would help.
    Truly enjoyed this post! And we will be making these cupcakes.

  4. LOVED THESE !! I had a lot of left over frosting … I used Reeces’s Pieces instead! Keeper of a recipe!

  5. I was wondering how many cupcakes this recipe will produce. I want to make them for a party, but I have to make sure I have enough! Any guidance?

      1. I wanted to report back: I ended up with 26 cupcakes, but some could have been bigger. The icing recipe worked well. I ended up adding 1/2 cup milk total to get sufficient creaminess. Thanks for the post!

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