Why This Chocolate Peanut Butter Cake with Fudge Layer Stands Out
There’s nothing quite like the combination of rich chocolate, creamy peanut butter, and a silky fudge layer. This chocolate peanut butter cake with fudge layer is designed for home basers who crave restaurant-quality desserts without the hassle. Whether it’s for a birthday, holiday, or just a sweet weekend treat, this recipe delivers moist layers, bold flavors, and a showstopping presentation.
Ingredients You’ll Need
For the Chocolate Cake:
Quantity | Ingredient |
---|---|
2 cups | All-purpose flour |
1Âľ cups | Granulated sugar |
Âľ cup | Unsweetened cocoa powder |
2 tsp | Baking powder |
1½ tsp | Baking soda |
1 tsp | Salt |
1 cup | Buttermilk |
½ cup | Vegetable oil |
2 large | Eggs |
2 tsp | Vanilla extract |
1 cup | Hot coffee (or water) |
For the Peanut Butter Frosting:
Quantity | Ingredient |
---|---|
1 cup | Creamy peanut butter |
½ cup | Unsalted butter (softened) |
2 cups | Powdered sugar |
2 tbsp | Heavy cream |
1 tsp | Vanilla extract |
For the Fudge Layer:
Quantity | Ingredient |
---|---|
1 cup | Semi-sweet chocolate chips |
½ cup | Heavy cream |
2 tbsp | Unsalted butter |
Step-by-Step Directions
Step 1: Prep the Oven and Pans
Preheat your oven to 350°F (175°C). Grease two 9-inch round cake pans and line them with parchment paper.
Step 2: Mix Dry Ingredients
In a large bowl, whisk together flour, sugar, cocoa powder, baking powder, baking soda, and salt.
Step 3: Combine Wet Ingredients
Add buttermilk, oil, eggs, and vanilla to the dry mix. Beat on medium speed until smooth. Slowly pour in hot coffee (or water) and mix until the batter is thin but lump-free.
Step 4: Bake the Cake Layers
Divide the batter evenly between the pans. Bake for 30-35 minutes or until a toothpick comes out clean. Let cool completely.
Step 5: Make the Peanut Butter Frosting
Beat peanut butter and butter until creamy. Gradually add powdered sugar, heavy cream, and vanilla. Whip for 2-3 minutes until fluffy.
Step 6: Prepare the Fudge Layer
Heat heavy cream until simmering, then pour over chocolate chips and butter. Let sit for 2 minutes, then stir until smooth.
Step 7: Assemble the Cake
Place one cake layer on a plate. Spread half the peanut butter frosting, then pour half the fudge layer. Repeat with the second layer. Chill for 1 hour before slicing.

Pro Tips for the Perfect Fudge Layer
- Use high-quality chocolate for the fudge layer (like Ghirardelli) to avoid graininess.
- Chill the cake for at least 1 hour to set the fudge.
- Dust with cocoa powder or crushed peanuts for garnish.
FAQs
Q: Can I use natural peanut butter for the frosting?
A: Yes, but ensure it’s well-stirred and not oily. Natural peanut butter may require extra powdered sugar to thicken.
Q: How long does this cake stay fresh?
A: Store it covered in the fridge for up to 5 days. Let slices sit at room temperature for 10 minutes before serving.
Q: Can I make this gluten-free?
A: Absolutely! Swap the all-purpose flour for a 1:1 gluten-free blend like Bob’s Red Mill.
More Decadent Desserts to Try
- Pumpkin Cake: How to Bake in 3 Steps (Beginner’s Guide)
- Cinnamon Apple Cake: How to Bake the Perfect Fall Dessert
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