Peanut Butter Chocolate Bundt Cake

  • Peanut Butter Chocolate Bundt Cake

    Because of all the craziness of this summer, I didn’t make Alex a birthday cake.  Blasphemous, I know.  His birthday was almost two months ago and I owe him a cake.

    Even though I bake him a cake every year, he never expects one.  Alex is quite simple when it comes to birthdays.  I, on the other hand, am not.  With Alex being a chef and all, you would think that he would also bake me birthday cakes.  The short answer is no.  The long answer is: he made me a cake once, but…

    In 2010, Alex did make me a cake.  He made this monstrous German chocolate cake.  He brought it to my house at midnight to surprise me. Earlier in the day, I had been calling and texting him like crazy.  He wasn’t responding.  I cannot stand delayed responses.  People have their phones on them at ALL times.  I don’t get why he wasn’t returning my calls.  I was SO MAD. (Yes, I tend to be very emotional and I overreact all the time.  But hey, I’m learning to get better about those things.)

    Anyway, hours later he shows up at my door with the cake.  Apparently he had been busy making the cake.  His explanation was not enough for me.  I didn’t eat the cake and I stayed angry for a couple more hours.  (I can be quite dramatic.)  As a result of that entire ordeal, Alex has never tried to make me a cake ever again.

    Peanut Butter Chocolate Bundt Cake Peanut Butter Chocolate Bundt Cake

    So back to this birthday cake… this peanut butter chocolate bundt cake is pretty amazing.  I adapted my old chocolate glazed whiskey bundt cake and added a surprise peanut butter swirl inside the cake.

    Peanut Butter Chocolate Bundt Cake

    Peanut butter and chocolate is Alex’s favorite combination when it comes to desserts.  I didn’t tell him what kind of cake this was when I presented it to him.  It wasn’t until he saw the slice that he realized I included peanut butter.  From the outside, it looks like a regular chocolate bundt cake, but inside there’s something special.

    Peanut Butter Chocolate Bundt Cake

    Peanut Butter Chocolate Bundt Cake

    I was inspired to make a bundt cake after seeing the latest issue of Martha Stewart Living.  On the cover there is a beautifully sliced and styled coffee cake.  The styling of my chocolate bundt cake is in homage that one.

    Alex loved his cake.  He enjoyed a slice (maybe two) with a glass of ice cold milk.  I promise next year I’ll be more timely with his birthday cake…but I think this peanut butter chocolate bundt cake was worth the wait.

    Peanut Butter Chocolate Bundt Cake


    Chocolate Cake:

    • 4 oz unsweetened chocolate, roughly chopped
    • 3 Tbsp instant espresso powder
    • 2 Tbsp unsweetened cocoa powder
    • 3/4 cup whole milk
    • 1 cup unsalted butter, room temperature
    • 1 1/2 cup granulated sugar
    • 3 large eggs
    • 2 cups all-purpose flour
    • 1 tsp baking soda
    • 3/4 tsp fine sea salt

    Peanut Butter Cake Filling:

    • 1/4 cup unsalted butter, room temperature
    • 1/4 cup smooth peanut butter
    • 2 Tbsp granulated sugar
    • 1 large egg, beaten
    • 1/2 cup flour
    • 1/4 cup whole milk
    • 1/4 tsp fine sea salt

    Chocolate Glaze:

    • 4 oz dark chocolate, roughly chopped
    • 1/4 cup unsalted butter
    • 1 Tbsp glucose, or light corn syrup

    Peanut Butter Glaze:

    • 2 Tbsp smooth peanut butter
    • 2 -3 Tbsp whole milk
    • 3/4 cup powdered sugar, sifted
    • pinch of salt


    Chocolate Cake:

    1. Preheat oven to 350 degrees F.  Generously butter a 10-cup bundt pan and set aside.
    2. In a microwave safe bowl, heat unsweetened chocolate at half power at 30 second intervals.  Stir often.  Heat until chocolate is melted.  Set aside.
    3. In a glass measuring cup, stir together instant espresso powder and cocoa powder.  Add enough hot water until liquid mixture measures 1 cup.  Stir until powders are dissolved.  Add milk and let cool.
    4. In the bowl of a stand mixer with a paddle attachment, cream butter and sugar until light and fluffy.  Add eggs one at a time, making sure egg is incorporated before adding the next.  Scrape down bowl as needed.
    5. Add slightly cooled melted chocolate. Continue to mix on low-medium speed until combined.
    6. In a medium bowl, whisk together flour, baking soda, and salt.  With the mixer on low, add 1/3 of milk mixture, then 1/2 of flour mixture.  Repeat, ending with the milk mixture.  Mix until combined.

    Peanut Butter Cake Filling:

    1. In a medium bowl, cream together butter and peanut butter until smooth.  Add sugar and mix until combined.  Add half of the beaten egg.  Discard other half of egg.  Mix until combined.
    2. Fold in flour and salt.  Add milk and stir to combine.  Mix until flour is incorporated.

    Cake Assembly:

    1. Add half of chocolate batter to prepared bundt pan.  Distribute peanut butter cake filling on top of chocolate layer.  Swirl with knife to spread out peanut butter batter.  Add remaining chocolate batter to cover peanut butter batter.
    2. Bake for 50-60 minutes, until toothpick inserted in cake comes out clean.  Let cool in pan for a couple of minutes before unmolding.  Let cool to room temperature of wire rack.

    Chocolate Glaze:

    1. Over a double boiled, melt together chocolate and butter until smooth.  Alternatively, you can microwave it at half power at 30 second intervals until melted.
    2. Remove from heat and whisk in glucose.  Pour over cooled bundt cake.

    Peanut Butter Glaze:

    1. Stir together sifted powdered sugar, peanut butter, and salt.  Add milk and stir until smooth.  Add additional milk if glaze is too dry.  If glaze is too thick, add additional sifted powdered sugar.  Drizzle peanut butter glaze over chocolate glazed bundt cake.


    Note: The peanut butter cake filling is not creamy.  It will be more cake-like in texture. 

    The Little Epicurean

    Peanut Butter Chocolate Bundt Cake

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    Liz @ Floating Kitchen

    Chocolate + PB. I’m so there! Your cake looks fabulous!


    I love your blog!
    This cake has me drooling already.
    Brilliant idea to make the pb filling a cake filling.
    Where did you get this recipe or did you think of it?
    Love love love your blog!!

      Maryanne Cabrera

      THANK YOU! It’s my own recipe. I try to only post original recipes :)

    Thalia @ butter and brioche

    loving the look & sound of a peanut butter chocolate bundt! definitely craving a slice, pinned!

    Mrs. B

    I can’t wait to make this cake. It looks amazing. Also love the story!!!

      Maryanne Cabrera

      Call us over when you make it! I’m sure Alex wants another slice :)

    Chris @ Shared Appetite

    I should not have read this at 9am. Now I want cake. For breakfast. Pinning this beauty!

    And looking forward to meeting you at the BHG Style event in NYC in a few weeks!

      Maryanne Cabrera

      Thanks Chris! There’s nothing wrong with cake for breakfast. I do it all the time ;)

      Yay, can’t wait to meet you in NYC!

    Suzanne @ Flour Arrangements

    Peanut butter swirl in a chocolate bundt cake is pure genius! Drooling uncontrollably, here. Can’t wait to give this recipe a try!

      Maryanne Cabrera

      Flour Arrangements- I love the name!! I hope you like the cake :)


    Hi I made your cake last night and it looked so great. The chocolate part was great. It was moist and fluffy. On the other hand the peanut butter swirl was not so much I don’t know where it went wrong. From the picture I thought it would be creamy, but instead it was very thick or eggy like. Next time i’ll try putting baking powder in the peanut butter and hopefully it would be as fluffy as the cake.

      Maryanne Cabrera

      Hi Hope, thanks for trying out the recipe! The peanut butter swirl isn’t creamy. It’s supposed to be a peanut butter cake inside the chocolate cake.


    This looks DELICIOUS!! But I’m having to eat dairy free for my little one. Do you think it would work as well to supplement coconut milk and oil in place of the whole milk and butter? And if I try it, I’ll let you know how it goes. :)

      Maryanne Cabrera

      Hi Rebecca! Sorry, I’m not sure how coconut milk and oil would work in the recipe. However, I’d love to hear about it if you try it out!

    La Shawn

    I’m a little late to the party, but I wanted to let you know that I made the bundt cake for my wife’s birthday and it was a hit. I was told that I screwed up big time, as I will have to make this every year for her birthday. Thanks Maryanne!


    attempted to bake this now twice to disastrous results both times. Cake has come out dense and pastry both times. I thought this was a result of over beating so in lieu using the stand mixer I hand mixed it the second time and it was still a disaster. Not sure where this goes wrong but it’s really a shame.

      Maryanne Cabrera

      Hi Matt, I’m sorry to hear that. I’ve made this recipe several times with consistent results. Perhaps the unsweetened chocolate was burned during melting. If the chocolate is heated out of temper, it will become grainy.


    What happens if I were to omit the espresso??

      Maryanne Cabrera

      The espresso powder highlights the chocolate flavors. You can easily omit it, if you’d like.

    Salomé Rocha

    Excellent bundt cake. I love it… I will do this cake over and over again… Delicious. Thanks…

    Chelsie Jackson

    When do you add the cocoa a SN espresso milk mixture?

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