July 28, 2011

Portable Chocolate Peanut Butter Swirl Bundt Cake {Naptime Everyday}

PB Bundt Cake

What’s Going on Today: Preparing for afternoon with friends the next town over. We are bringing the dessert!

Naptime Goals: Bake cake and give it enough time to cool!

Tonight’s Menu: Jim’s Grilled Tuna, Snow Peas, Rice with Scallions, Chocolate Peanut Butter Bundt Cake

When our friends invited us over for the tuna cookout I was in charge of bringing dessert. Since the attendees of our cookout included three young children, four adults and a few neighbors I wanted to make something that would appeal to all ages. Initially I considered a fancy fruit pie, but that is always touch and go with children. I then briefly thought about my Blueberry Thyme Poundcake with Lemon Glaze, but decided against it since many children don’t like herbal undertones in their food. In the end I settled on the dessert with universal appeal: chocolate cake.

Luckily, I confirmed that there were zero nut allergies in our small group so I was free to add flavorings and swirls as desired. Since my daughter has gotten really into Homemade Chocolate Peanut Butter Cup Ice Cream lately I figured that she would appreciate the same flavors in a baked good, as would the rest of the under four set.

During the naptime before our outing I whipped up my favorite classic chocolate cake recipe as well as a simple peanut butter swirl. The swirl was based off of the same recipe I use for swirling into brownies. The batter came together quickly and easily and was in the oven in no time. (As a side note, I should mention I contemplated baking the cake into two nine inch rounds and frosting it with peanut butter buttercream frosting, but I didn’t think it would transport as well as a solid bundt cake. Icing melts so easily in the heat!) After our cake cooled we transported it in a deep, wide tupperware and it held up perfectly until it found a home on my friend’s cake stand. From there we oogled it for the afternoon until dessert time was finally upon us. The fudgy cake had a rich chocolate flavor with a sweet peanut butter ribbon swirled throughout. It was like eating the most decadent chocolate peanut butter cup in the whole world. We licked our plates clean and ate the remainder of the cake at our picnic table the next evening when we reconvened at The Samples concert on the beach.


 Peanut Butter Swirl Bundt Cake


2 cups granulated sugar
1 ¾ cups all-purpose flour
¾ cups dutch process cocoa powder, plus more for dusting
½ teaspooon kosher salt
1 teaspoon baking powder
2 teaspoons baking soda
1 cup sour milk (1 cup whole milk with 1 teaspoon white vinegar stirred in)
1 cup freshly brewed strong black coffee
½ cup vegetable oil
2 eggs
1 teaspoon vanilla

For the Swirl:

3 tablespoons unsalted butter, melted
½ cup confectioners sugar
¾ cup creamy peanut butter
1 pinch kosher salt
1 teaspoon vanilla extract


  1. Preheat oven to 350. Butter a bundt pan and dust the inside with cocoa powder, set aside.
  2. Sift together sugar, flour, cocoa powder, salt, baking powder and baking soda in a bowl. Set aside.
  3. In a mixer on low add the milk, coffee, vegetable oil, eggs and vanilla one at a time. mix until everything is incorporated. Then, with the mixer still on low speed, slowly add in the dry ingredients. Once all of the flour mixture is added, mix the batter for a full four minutes on medium speed.
  4. Meanwhile, make the peanut butter swirl by beating together the melted butter, sugar, peanut butter, salt and vanilla extract until completely smooth.
  5. Pour the batter into the bundt pan and drizzle the peanut butter swirl into the batter. It will slowly disappear into the cake. Drag a knife through the batter a few times to help the swirl ribbon through the batter.
  6. Bake the cake for 45 minutes, or until a cake tester comes out clean. Allow it to cool to room temperature on a wire rack.

Naptime Notes

Naptime Recipe Serving ideas

I love this cake served with vanilla ice cream or coffee ice cream. It also makes an especially decadent base for an ice cream sundae!


Naptime Stopwatch

20 minutes for the cake, plus baking time


Naptime Reviews

This was a hit all around, especially with the kids!