Fudge Filled Peanut Butter Cake Bars

Embrace the weekend with these Fudge Filled Peanut Butter Cake Bars, a dream come true for every peanut butter and chocolate aficionado!


1 box of yellow cake mix

2 eggs

½ cup of butter, melted

1 teaspoon of vanilla extract

½ cup of creamy peanut butter

For the Fudge Filling:

2 cups of chocolate chips

1 can of sweetened condensed milk

2 tablespoons of butter


Prepare the Cake Layer: Combine the yellow cake mix, eggs, melted butter, vanilla extract, and peanut butter in a mixing bowl. Transfer half of this batter into a 9×13 inch baking dish lined with nonstick foil.

Create the Fudge Layer: In a microwave-safe bowl, mix the chocolate chips, sweetened condensed milk, and butter. Heat in the microwave until the chocolate is completely melted, stirring occasionally to ensure smoothness. Evenly pour this fudge mixture over the first cake layer in the baking dish.

Add the Top Layer: Spoon the remaining cake batter over the fudge layer. Spread it out as evenly as possible.

Bake: Cook in a preheated oven at 350°F (175°C) for 20-25 minutes, or until the top is lightly golden and set.

Cool and Serve: Allow the bars to cool before slicing. Drizzle with extra melted peanut butter if desired for an additional peanut buttery kick.

Prep Time: 10 minutes | Cooking Time: 25 minutes | Total Time: 35 minutes

Kcal: 389 per serving | Servings: 12 servings

Indulge in these irresistibly fudgy, peanut buttery cake bars and make your weekend treats unforgettable.

Gourmet Touches for an Unforgettable Treat:

  • Peanut Butter Drizzle: Warm the extra peanut butter until runny and drizzle over the cooled bars for a glossy finish.
  • Chocolate Ganache Topping: Elevate your bars with a layer of chocolate ganache on top of the fudge layer before adding the final cake batter.
  • Nutty Crunch: Sprinkle chopped peanuts or pecans between layers or on top before baking for an added texture.
  • Serving Suggestion: Accompany these bars with a cold glass of milk or a cup of coffee for the ultimate comfort snack.

Storing Your Creation:

  • Room Temperature: Keep the bars in an airtight container for up to 3 days, maintaining their moist texture.
  • Refrigerated: For a firmer fudge layer, store the bars in the refrigerator for up to a week. Let them sit out for a few minutes before serving to soften slightly.

Additional Gourmet Enhancements:

For a Luscious Layering:

  • Salted Caramel Infusion: Before adding the top layer of cake batter, drizzle a thin layer of salted caramel over the fudge. This not only adds a complexity of flavors but also introduces a delightful gooey texture.

Texture and Toppings:

  • Crushed Cookie Crumble: Sprinkle a layer of crushed peanut butter cookies or chocolate wafers over the fudge layer for an added crunch and depth of flavor.
  • Marshmallow Meringue: Top your cake bars with a fluffy layer of marshmallow meringue and broil for a few minutes until golden. This addition brings a delightful sweetness and a beautiful toasted finish.

For the Ultimate Flavor Fusion:

  • Espresso Embrace: Enhance the chocolate flavor by adding a teaspoon of instant espresso powder to the fudge mixture. The subtle coffee notes will amplify the chocolate and peanut butter pairing.
  • Zesty Orange Peel: Add a teaspoon of orange zest to the cake batter for a surprising burst of citrus that cuts through the richness of the fudge and peanut butter.

Serving and Pairing Suggestions:

  • Ice Cream Pairing: Serve your peanut butter cake bars with a scoop of vanilla or chocolate ice cream for a classic dessert combination that is both comforting and luxurious.
  • Dessert Wine Pairing: Pair these decadent bars with a glass of port wine or a sweet sherry. The rich flavors of the dessert harmonize beautifully with the warm, deep notes of the wine.

Storing and Savoring:

  • Freezing for Later: These bars freeze wonderfully. Wrap individual bars in plastic wrap and store in a freezer bag. Thaw at room temperature for an hour or gently warm in the microwave for a treat that tastes freshly made.
  • Gift Giving: Pack these bars in a decorative box or tin for a thoughtful and homemade gift. Perfect for holidays, teacher appreciation, or a sweet surprise for friends and family.

Let these Fudge Filled Peanut Butter Cake Bars be a testament to your culinary creativity and a beacon of joy for your weekend gatherings. With each bite, let the seamless meld of peanut butter and chocolate transport you to a realm of unparalleled indulgence.

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