Amazing Peanut Butter Cake with Peanut Butter Italian Meringue Buttercream

Have you ever had a piece of cake that you can eat for breakfast? Oh my goodness, this peanut butter cake fits the bill.  It is one of the best cakes I have ever had. The combination of the peanut butter cake with a peanut butter Italian Meringue Buttercream is so A-MAZ-ING. Like I would have to start my diet all over again good. A white chocolate peanut butter ganache drip brings it over the top.

I saw this recipe in an old newspaper clipping and decided to try it since I was craving peanut butter. The cake and the buttercream frosting was so good it took a lot of willpower on my part to stop tasting the batter and the frosting. My taste tester had two large slices and commented that “this was one of the best cake flavors I have made so far.”

One of my goals this year was to experiment with more cake flavors and buttercream.  Plus, I literally got sick of making the same ole vanilla and red velvet cake recipes.  I can officially check that off my list.  So far this year I made a strawberry cake, lavender cake, and a lemon and blackberry cake with blackberry buttercream, all super delicious. Amazing Peanut butter cake with Peanut butter frosting (IMBC) and peanut butter ganache drip is so good|Step by step tutorial

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Let’s talk about this Peanut Butter Cake with Peanut Butter Italian Meringue Buttercream shall we

The cake is loaded with peanut butter flavor that you can taste in every bite. Then peanut butter was added to a vanilla Italian Meringue Buttercream. The pairing gives just the right amount of peanut butter. It has such a great texture. I promise you won’t stop eating this cake.

I have never made peanut butter ganache before, but as it turned out it was the right amount of peanut and white chocolate. To make the peanut butter ganache drip, I used some Ghirardelli white chocolate mixed with white chocolate chips.  I suggest that wait for about 20 minutes or so after you mix the ganache, as the mixture will be very runny.  It is best to use the drip on a cold cake.  If you are in a hurry like I was, just be careful when you cut the ziplock bag.  Don’t worry about the fact that the ganache is runny the cold cake will stop the drip.

Materials Needed for the cake


Here are a few things to consider when making the peanut butter cake

For the peanut butter I suggest a creamy peanut butter, however, if you like a little crunch, then I suggest the crunchy peanut butter.  I believe that replacing the peanut butter with almond butter would be just as good.  I haven’t tried it yet, but I will at some point.

When making the peanut butter ganache, make sure the heavy cream is not boiling hot or the chocolate will seize. Also, use a piping bag or ziplock bag to get a more controlled drip.Amazing Peanut butter cake with Peanut butter frosting (IMBC) and peanut butter ganache drip is so good|Step by step tutorial

Now I know you’re dying to try it…

Amazing Peanut butter cake with Peanut butter frosting (IMBC) and peanut butter ganache drip is so good|Step by step tutorial

Peanut Butter Cake with Peanut Butter Frosting and Peanut Butter Ganache

This peanut butter cake with peanut butter frosting and peanut butter ganache drip is AMAZING. it is so good you will be eating it for breakfast.
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Prep Time 25 minutes
Cook Time 25 minutes
Total Time 50 minutes
Servings 14 People

Ingredients
  

Ingredients

    Cake

    • 2 cups all-purpose flour
    • 1 1/2 cups sugar
    • 1 1/4 tsp baking soda
    • 1 tsp baking powder
    • 1/4 tsp salt
    • 1/3 cup butter
    • 1/3 cup peanut butter
    • 2 large eggs
    • 1 1/4 cup buttermilk
    • 1 tsp vanilla

    Peanut Butter Italian Meringue Buttercream

    • 1/3 cup peanut butter
    • 3/4 + 1/8 cups sugar
    • 4 large egg whites
    • 1/4 cup water
    • 2 sticks butter
    • 1/2 tsp vanilla extract

    Peanut Butter Ganache

    • 5 ounces white chocolate chip
    • 1/4 cup heavy cream
    • 1/4 cup peanut butter

    Instructions
     

    Directions

      For Cake

      • Preheat the oven to 350 degrees, prepare 3 6-inch cake pans.
      • Mix the flour, baking soda, and the baking powder together in a bowl.
      • Cream the peanut butter and butter together.
        Amazing Peanut butter cake with Peanut butter frosting (IMBC) and peanut butter ganache drip is so good|Step by step tutorial
      • Then add sugar and mix until combined.
        Amazing Peanut butter cake with Peanut butter frosting (IMBC) and peanut butter ganache drip is so good|Step by step tutorial
      • Add the eggs one at a time, then the vanilla extract.
        Amazing Peanut butter cake with Peanut butter frosting (IMBC) and peanut butter ganache drip is so good|Step by step tutorial
      • Then add the dry ingredients and the buttermilk finish with flour.
        Amazing Peanut butter cake with Peanut butter frosting (IMBC) and peanut butter ganache drip is so good|Step by step tutorial
      • Mix until combined. Don't over mix.
        Amazing Peanut butter cake with Peanut butter frosting (IMBC) and peanut butter ganache drip is so good|Step by step tutorial

      For Buttercream

      • Add the sugar and the water in a medium saucepan with medium heat until 240 degrees F.
      • While the sugar is heating, beat the egg whites with the whisk attachment until it reaches a stiff peak.
      • With the mixer on high, slowly add the sugar syrup and mix until the bowl is cool to the touch.
      • Add the butter one piece at a time until combined.
      • Then add the vanilla and the peanut butter. Mix until combined.

      For Peanut Butter Ganache

      • Add the peanut butter to the white chocolate
        Amazing Peanut butter cake with Peanut butter frosting (IMBC) and peanut butter ganache drip is so good|Step by step tutorial
      • Heat the heavy cream in the microwave for about 30 seconds.
      • Pour over the white chocolate and peanut butter. Let it sit for a few minutes.
        Amazing Peanut butter cake with Peanut butter frosting (IMBC) and peanut butter ganache drip is so good|Step by step tutorial
      • Then mix until all the chocolate is melted.
        Amazing Peanut butter cake with Peanut butter frosting (IMBC) and peanut butter ganache drip is so good|Step by step tutorial

      Decorating the Cake

      • Frost the cake using the peanut butter buttercream and place into the refrigerator.  The peanut butter ganache drip works best on a cold cake. Add some of the ganache to a small ziplock bag and make a small cut.  Pipe small drips all around the cake of various length.  Then add some ganache to the top of the cake and use a small spatula to spread towards the edge of the cake
        Amazing Peanut butter cake with Peanut butter frosting (IMBC) and peanut butter ganache drip is so good|Step by step tutorial
      Keyword Peanut Butter buttercream, Peanut butter cake, Peanut Butter Italian Meringue Buttercream
      Tried this recipe?Let us know how it was!

      Amazing Peanut butter cake with Peanut butter frosting (IMBC) and peanut butter ganache drip is so good|Step by step tutorial

      2 COMMENTS

      1. Carrie | 7th Dec 18

        I’ve made peanut butter italian meringue buttercream before and it wasn’t super stable at room temperature. (It’s a little soft) Do you ever have this issue?

        • G | 13th Dec 18

          Hi Carrie,
          The problem I had was that it seemed to have separated a bit. I whipped it in the mixer for a few minutes to get it back to the original state, seems the best solution is to use it right away. It was fine once I placed in the refrigerator and brought it to room temperature. Hope that helps.

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