Don't be fooled by this simply dressed cupcake. We hid its sweet secret inside: a creamy, fluffy peanut butter filling.

Advertisement

Ingredients

Ingredient Checklist

Directions

Instructions Checklist
  • Preheat oven to 350 degrees. Lightly coat 12 standard muffin cups with cooking spray, then dust with cocoa, tapping out excess. In a large bowl, whisk together cocoa, flour, granulated sugar, baking soda, baking powder, and salt. Using a mixer, beat in eggs, buttermilk, oil, and 3/4 cup water on medium until smooth, about 3 minutes.

    Advertisement
  • Divide batter among cups and bake until a toothpick inserted in center of a cake comes out clean, about 20 minutes. Let cool in pan on a wire rack 5 minutes, then remove cupcakes and let cool completely on rack.

  • In a large bowl, using mixer fitted with the paddle attachment, beat butter and peanut butter on high until fluffy, 3 minutes; fold in marshmallow topping. Transfer to a zip-top bag and cut off one corner to make a 1/2-inch opening.

  • With a melon baller, scoop out center of each cupcake base and set aside (these pieces will plug cupcakes after filling). Hollow out each cupcake a bit more, discarding crumbs. Fill cavities with peanut butter mixture and replace plugs. (Refrigerate in an airtight container, up to 1 week.) To serve, dust with confectioners' sugar.

Reviews (9)

155 Ratings
  • 5 star values: 31
  • 4 star values: 48
  • 3 star values: 52
  • 2 star values: 15
  • 1 star values: 9
Rating: 2 stars
08/22/2017
Well, phone won't let me go below 2 stars, but - gross. Cake is oily and needs vanilla, and the marshmallow fluff is just nasty. Better to have just put a dollop of peanut butter inside. Also cupcakes collapsed unlike picture.
Rating: Unrated
04/10/2017
Loved these! The cake is fluffy and delicious. I changed the filling to a simple cream cheese and peanut butter mixture with a bit of honey. Will definitely make again!
Rating: Unrated
03/01/2017
Can someone PLEASE tell me why the ingredients do not save to the desktop? Whenever I see a recipe I like I click "save" so that I can keep it in a file and go to it later when I want to make it. EVERY time I do this, when I open it the ingredients are gone..just the recipe is there...it's maddening! I've written to the company but no answer ever. Anyone else have this problem?
Advertisement
Rating: Unrated
04/23/2015
These look delicious - I think I'll use the leftover filling for a decorative topping, instead of the confectioner's sugar.
Rating: Unrated
02/11/2015
This is a good cupcake recipe. It is moist, rich, and keeps well for several days when stored in an air tight container. I will use it with the cream filling as well as the peanut butter filling which my husband loved.
Rating: Unrated
01/18/2015
I have done this cake before but what's not listed is the hot water. This is the most amazing recipe and dead easy!!! I used it for cupcakes, used it for a whole cake, filled cakes, did cakw pops...super recipe and highly recommend it!!!
Advertisement
Rating: Unrated
01/18/2015
I have done this cake before but what's not listed is the hot water. This is the most amazing recipe and dead easy!!! I used it for cupcakes, used it for a whole cake, filled cakes, did cakw pops...super recipe and highly recommend it!!!
Rating: Unrated
01/28/2013
These taste absolutely fabulous very close to my Chocolate-Coffee Cake, but the were flat and did not rise and looked like flat globs, any idea as to what went wrong?
Rating: Unrated
01/26/2013
Why did you not list the 3/4 cup water in your recipe?