Peanut Butter Fudge Cake: A Slice of Heaven

If you’re searching for a dessert that combines the richness of chocolate with the creamy allure of peanut butter, look no further. This Peanut Butter Fudge Cake is a crowd-pleaser, perfect for any occasion. Let’s dive into the details.


Ingredients You’ll Need

For the Cake:

  • 2 cups all-purpose flour
  • 2 cups granulated sugar
  • 1 teaspoon baking soda
  • 1 cup butter
  • ½ cup unsweetened cocoa powder
  • 1 cup buttermilk
  • 2 large eggs, beaten
  • 1 teaspoon vanilla extract

For the Peanut Butter Layer:

  • 1½ cups creamy peanut butter

For the Frosting:

  • ½ cup butter
  • ¼ cup unsweetened cocoa powder
  • ⅓ cup buttermilk
  • 4 cups sifted powdered sugar
  • 1 teaspoon vanilla extract

Step-by-Step Instructions

1. Prepare the Cake

  • Preheat your oven to 350°F (175°C). Grease and flour a 9×13-inch baking pan.
  • In a large mixing bowl, combine the flour, sugar, and baking soda.
  • In a saucepan over medium heat, melt the butter. Stir in the cocoa powder and buttermilk. Bring to a boil, stirring constantly.
  • Remove from heat and mix in the eggs and vanilla extract. Pour this mixture into the dry ingredients and stir until smooth.
  • Pour the batter into the prepared pan and bake for 20–25 minutes, or until a toothpick inserted into the center comes out clean.
  • Allow the cake to cool for about 10 minutes. While still warm, spread the peanut butter evenly over the top. Let it cool completely.

2. Prepare the Frosting

  • In a saucepan, melt the butter over medium heat. Stir in the cocoa powder and buttermilk. Bring to a boil, stirring constantly.
  • Remove from heat and gradually add the powdered sugar, stirring until smooth. Mix in the vanilla extract.
  • Pour the frosting over the cooled cake, spreading it evenly to cover the peanut butter layer.

Pro Tips for Success

  • Use Smooth Peanut Butter: Opt for a processed, smooth peanut butter like Skippy for consistent texture and flavor. Natural peanut butter may not yield the same results. ​
  • Allow Proper Cooling: Ensure the cake cools sufficiently before spreading the peanut butter and frosting. This prevents melting and ensures each layer sets properly. ​
  • Sift the Powdered Sugar: Sifting the powdered sugar before adding it to the frosting mixture helps achieve a smooth and lump-free consistency.​

Serving Suggestions

  • Garnish: Top with chopped peanut butter cups or a drizzle of melted chocolate for an extra touch.​
  • Pairing: Serve with a glass of cold milk or a scoop of vanilla ice cream to complement the rich flavors.​

Storage Tips

  • Room Temperature: Store the cake in an airtight container at room temperature for up to 3 days. ​
  • Freezing: For longer storage, freeze the cake for up to 1 month. Ensure it’s well-wrapped to prevent freezer burn.​

Nutritional Information (Per Serving)

This cake is a delightful indulgence, offering a balance of flavors and textures that will satisfy any sweet tooth.​


Feel free to share your experiences or ask any questions about this recipe. Happy baking!

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