Most people don’t really put peanut butter and marshmallow together, but when you do….WATCH OUT! This is a 100% guaranteed belt buster
Heat oven to 350*
Grease or line muffin pan with cupcake liners.
Cake Ingredients:
- 3/4 cup all purpose flour
- 1/3 cup cocoa powder
- 3/4 teaspoon baking soda
- 1/2 teaspoon salt
- 1/2 cup plus 2 tablespoons granulated sugar
- 1/2 cup buttermilk
- 1/3 cup vegetable oil
- 1 large egg
- 1 teaspoon pure vanilla extract
Step 1-In medium bowl, whisk flour, cocoa, baking powder, and salt until combined; set aside.
Step 2- In large bowl, whisk sugar, buttermilk, oil, egg, and vanilla until combined and smooth. Whisk in dry mixture until smooth.
Step 3- Spoon batter into cupcake cups, dividing evenly. Bake until center is just set, about 25 minutes. Let cool in pan 10 minutes, then transfer cupcakes to wire rack to cool completely.
Step 4- Frost once all cupcakes are cooled.
Frosting Ingredients:
- 1 cup marshmallow creme
- 1/2 cup peanut butter
- 1/3 cup butter or margarine, softened
- 1/4 teaspoon vanilla extract
- 1/4 teaspoon salt
- 1 1/3 cup confectioners’ sugar
- 2 tablespoons milk
Step 1-In small bowl with mixer at low speed, combine marshmallow creme, peanut butter and butter until blended. Increase speed to medium.
Step 2-Beat in confectioners’ sugar, alternately with milk, adding just enough milk to make frosting smooth and spreadable. Beat in vanilla.
For stiffer frosting, add more confectioners’ sugar a tablespoon at a time.

These sound divine! You just can’t beat a fluffernutter!
Oh you clever girl! Peanut butter and marshmallow cream – double yum! Beautiful cupcakes
They look incredible!
ooh they look heavenly!
Those look awesome and sound like they taste amazing
Yum!
Omg these look AMAZING, i’ve been wanting to bake peanut butter cupcakes. Wish I could eat one right now haha
Haha! Total belt buster!!
These sound so rich, yummy.
I’ve saved this in my dessert file on my computer. This will have to be made asap! Thanks!!
Omgggggg sooooo good!
it look sooooo good!
What decadent delights you make! I will definitely give these a try! I love chocolate cake (especially the buttermilk variety) and this frosting sounds fluffalicious! You are a talented baker…beautiful work on the frosting!
Not only do these sound AMAZING but I love the look of your towering, perfectly piped frosting. Beautiful
They look devine and so chocolatey x x
Yum yum yum! This frosting looks absolutely scrumptious!
Oh my! These look incredible. Any idea of…calorie count?
Just by the ingredients I used I would place it around 300 or a little under per cupcake.
oh no you didnt.
Oh yes I did!
All I can say is wow!
Fluffernutter sandwiches are one of my favorites. I’ll have to try these out!
I don’t know if you can by marshmellow creme here (Australia), but I have to find out a way to make this!
You can purchase it here as Marshmallow Fluff..hope this helps!
http://www.usafoods.com.au/
Or as Marshmallow Creme….under the baking section
These look TOO good! I think my somewhat picky husband will like them (he’s always going on and on about how he used to eat Fluffernutter sandwiches). Thanks for visiting my blog! Glad to have found you as well!
I’m deathly allergic to peanut butter, would nutella be an okay substitute? Or would the different consistencies change everything?
I would recommend, WOWButter or SunButter as a replacement. They are the same consistency as peanut butter but contain no nuts, peanuts, corn, or gluten
Nutella is filled with hazelnuts.
Thanks

Yeah, I can have other tree nuts, just not peanuts
I’ll definitely look around for WOWbutter or Sunbutter next time I go grocery shopping
Those look GLORIOUS! What kind of tip did you use for the frosting?
Thanks
The decorating tip was Wilton 8B
These look amazing! I might just have to try it, or convince my sister to make them! By the way you’re following my old blog but I started a new one! Check it out: http://thecraftyfrugaler.wordpress.com/