Easy peanut butter chocolate sheet cake

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This one-bowl, easy peanut butter chocolate sheet cake is just dreamy and would you just look at those swirls of fudgy frosting? I mean.

 

Easy peanut butter chocolate sheet cake

I have come to the conclusion that the most intense craving, is a craving for chocolate cake. I thought it was only me who needed chocolate cake Right now when the craving struck but it seems most of my friends are exactly the same way. And who has the time or energy to spend hours baking a cake when the craving has struck? No-one, that’s who!

Easy peanut butter chocolate sheet cakeEasy peanut butter chocolate sheet cakeThis easy, one-bowl peanut butter chocolate sheet cake is a variation of my absolute favourite Chocolate peanut butter cake recipe. I’ve made that recipe so many times, I can almost do it in my sleep by now. And even though it’s not much more complicated than this recipe, it requires a few more steps. I’ve cut out those steps here and can honestly say this sheet cake is pretty much identical to my classic recipe. It’s intensely chocolatey (made even more so by the added coffee which just adds extra oomph to the chocolate) with a hint of that delicious peanut butter nuttiness. And even though I hate the word, this cake is super moist (ugh).

I love baking it in a sheet pan because it makes serving so much easier and I find the ratio of cake to fudgy chocolate frosting is more in balance. Even the frosting-haters in my family loved this frosting. It’s almost moussey in texture and completely over-the-top chocolatey. Everything you want when the craving strikes.

Easy peanut butter chocolate sheet cake

Easy peanut butter chocolate sheet cake
 
Prep time
Cook time
Total time
 
This one-bowl, easy peanut butter chocolate sheet cake is just dreamy and would you just look at those swirls of fudgy frosting? I mean.
Author:
Recipe type: Chocolate cake, Baking, Cake
Serves: 10-12
Ingredients
for the cake
  • 2 cups cake/all purpose flour
  • 2 cups sugar
  • ½ cup cocoa powder
  • 2 teaspoons baking powder
  • 1 teaspoon salt
  • 1 cup buttermilk
  • 2 eggs
  • ½ cup melted butter
  • 1 cup smooth peanut butter
  • 1 cup hot black coffee
for the chocolate peanut butter frosting
  • ½ cup soft butter
  • 2 tablespoons smooth peanut butter
  • 5 cups sifted icing sugar
  • 3 tablespoons sifted cocoa powder
  • 2 tablespoons cooled coffee
  • 2-3 tablespoons milk
  • 1 cup melted dark chocolate, cooled
  • sprinkles, to decorate
Instructions
  1. Pre-heat the oven to 180ºc and line a rectangular sheet pan/cake pan with baking paper.
  2. In a large bowl, whisk together all the dry ingredients.
  3. Add the remaining ingredients and mix at medium speed for 2 minutes until well combined, scraping down halfway to make sure all the ingredients are incorporated.
  4. Transfer the batter to the prepared cake pan and place in the oven.
  5. Allow to bake for 35-40 minutes or until a skewer inserted comes out clean.
  6. Remove from the oven and allow to cool completely before frosting.
  7. To make the frosting, beat together the butter and peanut butter.
  8. Add the icing sugar, cocoa powder, coffee and milk and beat until thick and smooth.
  9. While mixing, slowly pour in the chocolate and allow to mix into the frosting. Mix for a further 1-2 minutes until the frosting is whipped and well combined.
  10. Spread the frosting onto the cooled cake and decorate with sprinkles.

Classic vanilla cupcakes with whipped buttercream

Classic vanilla cupcakes with whipped buttercream

Chocolate Peanut butter cake

ocolate Peanut butter cake

 

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Showing 8 comments
  • Laura | Tutti Dolci
    Reply

    This is such a dreamy cake, perfect to serve a crowd! 🙂

  • Linda Robinson
    Reply

    What size is the sheet pan? In looking at the video it looks like it might be a 9 inch by 13 inch pan.
    Thanks in advance.

  • Reply

    OMG Alida! Prettiest cake ever! That frosting looks amazing! Need to make this for my son Casey when he comes home from college!

    • Alida Ryder
      Reply

      Ah, thanks Mary Ann! I had such fun with it. Casey is going to LOVE it!

  • Kim Kellogg
    Reply

    Hi Alida, love this peanut butter and chocolate cake recipe but wonder about the 180-degree temperature you recommend. Is that Celcius? Seems like the temp should be 300 or 350-degrees in Farenheit (USA). Please let me know!

    Thanks.

    • Alida Ryder
      Reply

      It’s Celsius indeed. So around 350 fahrenheit.

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