Name: Simple Chocolate Cake with Peanut Butter Frosting Recipe
Prep time: 30 min
Cook time: 25 min
Total time: 2 h 50 min
Cuisine: American
Ingredients: ¼ cup margarine or butter; 1 cup granulated sugar; 2 large eggs (room temperature); 2 tsp baking powder; 1 tsp vanilla extract; 1 cup soured milk*; 1 tsp baking soda; 2 cups all-purpose flour; ⅓ cup unsweetened cocoa powder; ½ cup boiling water; 1 cup unsalted butter (softened); 1 cup creamy peanut butter; 4 cups icing sugar (confectioners’ sugar), divided; 2 ½ tbsp milk or cream; 1 tsp vanilla extract; ⅛ tsp salt; Chopped peanut butter cups; Melted chocolate; Melted creamy peanut butter

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If you are looking for a truly indulgent treat that combines the richness of chocolate with the creamy, nutty goodness of peanut butter, you have to try this Simple Chocolate Cake with Peanut Butter Frosting Recipe. It’s a crowd-pleaser for every occasion, effortlessly blending deep cocoa flavors with a smooth, luscious frosting that melts in your mouth. Whether you’re baking for a family get-together or just craving a slice of comfort, this recipe brings together simple ingredients, straightforward steps, and incredible results that will have everyone asking for seconds.

Ingredients You’ll Need

Five white bowls sit on a white marbled surface in a loose circle. The top left bowl is filled with many small, dark brown chocolate chips. Above the center is a small bowl with dark brown liquid. To the right center is a bowl with butter, cut into small pale yellow cubes. Below that is a bowl filled with smooth, creamy light brown peanut butter, swirled on top. The bottom left bowl holds a white powder, likely flour or powdered sugar, with a soft texture. Finally, a tiny bowl at the bottom right contains a small amount of solid white fat, such as shortening. photo taken with an iphone --ar 4:5 --v 7

For this Simple Chocolate Cake with Peanut Butter Frosting Recipe, you’ll be working with pantry staples that pack a flavorful punch. Each ingredient plays a vital role in creating the perfect balance of moist cake and creamy frosting, making the process approachable and the outcome unforgettable.

¼ cup margarine or butter: Adds richness and moisture to the cake batter for a tender crumb.
1 cup sugar (granulated): Sweetens the cake while helping create a light texture.
2 large eggs (room temperature): Provide structure and help bind all the ingredients together.
2 tsp baking powder: Gives the cake a fluffy rise ensuring it’s light and airy.
1 tsp vanilla extract: Enhances the chocolate flavor and adds warmth to the batter.
1 cup milk (soured*): Adds tang and moisture, tenderizing the cake for a soft bite.
2 cups flour (all-purpose): Forms the base of the cake’s structure.
⅓ cup cocoa powder (unsweetened): Infuses the cake with that bold, chocolatey essence.
½ cup water (boiled): Smooths out the cocoa and ensures the cake is perfectly moist.
1 cup unsalted butter (softened): For the frosting, providing a creamy, rich backdrop.
1 cup peanut butter (creamy): The star of the frosting, adding nutty flavor and smooth texture.
4 cups icing sugar: Sweetens the frosting and helps achieve that perfect spreadable consistency.
2 ½ tbsp milk or cream: Makes the frosting silky and easy to spread.
1 tsp vanilla extract: Adds subtle depth to the frosting’s flavor.
⅛ tsp salt: Balances sweetness and boosts the peanut butter notes.
Peanut butter cups (chopped): Optional topping for added texture and chocolate-peanut butter goodness.
Chocolate (melted): Optional drizzle to amplify the decadence.
Creamy peanut butter (melted): Optional for decorative swirls and extra flavor hits.

How to Make Simple Chocolate Cake with Peanut Butter Frosting Recipe

Step 1: Preheat and Prepare Your Pan

Start by setting your oven to 350 degrees Fahrenheit, the perfect temperature for baking a moist, tender chocolate cake. Grease a 9×13 inch cake pan thoroughly and consider lining the bottom with parchment paper if you prefer lifting the cake out for frosting. This initial step sets the stage for an even bake and easy removal.

Step 2: Cream Butter, Sugar, and Eggs

In a large bowl, blend your margarine or butter with granulated sugar until light and fluffy. This creaming process is crucial for incorporating air, which contributes to the cake’s light texture. Then, add in the eggs one at a time, beating well between each addition, followed by the vanilla extract to awaken those deep chocolate notes.

Step 3: Combine Dry Ingredients and Sour Milk

Mix the baking powder and flour separately. In another small bowl, blend the soured milk with a teaspoon of baking soda to activate a gentle rise and add tang. Alternate adding this wet mixture and the flour to your creamed sugar and butter blend, mixing just until incorporated to avoid overworking the batter which can make the cake tough.

Step 4: Incorporate Cocoa and Hot Water

To ensure your cake is **velvety smooth and bursting with chocolate flavor**, dissolve the unsweetened cocoa powder in boiling water. This step helps avoid lumps and intensifies the chocolate taste. Add this cocoa mixture to the batter and stir gently until fully combined.

Step 5: Bake the Cake

Pour the evenly mixed batter into your prepared pan, filling it about three-quarters of the way to allow room for rising. Slide it into the oven and bake for 20 to 25 minutes. You’ll know the cake is done when a toothpick inserted in the center comes out clean. Allow the cake to cool completely before frosting to ensure the frosting doesn’t melt.

Step 6: Prepare the Peanut Butter Frosting

Using a mixer, beat the softened unsalted butter until fluffy and smooth. Add the creamy peanut butter, a bit of the icing sugar, milk or cream, vanilla, and a pinch of salt. Beat all together to combine before slowly adding the rest of the icing sugar, beating well after each addition until the frosting is luscious and spreadable.

Step 7: Frost and Decorate

Once your cake is completely cool, spread the peanut butter frosting generously. For an extra touch of opulence and texture, sprinkle chopped peanut butter cups on top. You can also drizzle melted chocolate and creamy peanut butter in swirls to impress everyone with both flavor and looks.

How to Serve Simple Chocolate Cake with Peanut Butter Frosting Recipe

The image shows a thick slice of dark brown chocolate cake with a moist texture, topped with a thick layer of light beige frosting that looks creamy and smooth. Small pieces of chopped chocolate candy bar are scattered on top of the frosting, adding texture and color contrast with their light brown and chocolate shades. The slice is placed on a simple white plate with a shiny silver fork beside it. The background is a soft white marbled surface that highlights the rich colors of the cake, with another blurred slice of cake in the background. The photo was taken with an iphone --ar 4:5 --v 7

Garnishes

To brighten the presentation and add contrast, consider garnishing with chopped peanuts, a sprinkle of sea salt, or even a handful of fresh berries. These not only elevate the look but add layers of flavor that complement the dense, sweet cake.

Side Dishes

This cake pairs beautifully with chilled vanilla ice cream, a dollop of whipped cream, or even a warm cup of coffee or milk. These side accompaniments help balance the richness of the chocolate and peanut butter, creating a delightful dessert experience.

Creative Ways to Present

For an elegant touch, cut the cake into bite-sized squares and arrange on a decorative platter with drizzles of chocolate sauce. Alternatively, stack layers with frosting in between to create a towering masterpiece perfect for celebrations.

Make Ahead and Storage

Storing Leftovers

Keep your Simple Chocolate Cake with Peanut Butter Frosting Recipe fresh by storing leftovers in an airtight container at room temperature for up to two days. For a cooler climate or longer storage, refrigerating the cake will preserve its moistness and prevent the frosting from melting.

Freezing

If you want to make this cake ahead of time, it freezes wonderfully. Wrap individual slices tightly in plastic wrap and then in foil to prevent freezer burn. Frozen cake slices can last up to three months and thaw easily at room temperature when you’re ready to indulge.

Reheating

Reheat cake slices gently in the microwave for about 10-15 seconds to bring back that fresh-baked warmth, particularly if served with softened frosting. Avoid overheating to maintain the cake’s moist texture and prevent the frosting from melting too much.

FAQs

Can I use regular milk instead of soured milk in this recipe?

Absolutely! Soured milk adds a subtle tang and tenderizes the crumb, but you can easily make your own by adding a teaspoon of lemon juice or vinegar to regular milk and letting it sit for 5-10 minutes before using.

Is this Simple Chocolate Cake with Peanut Butter Frosting Recipe suitable for beginners?

Yes, definitely! The recipe uses straightforward techniques and accessible ingredients, making it perfect for bakers of all skill levels seeking a delicious chocolate dessert with an irresistible peanut butter twist.

Can I substitute peanut butter with almond or cashew butter?

While peanut butter is key to the classic flavor, you can experiment with other nut butters for unique frosting variations. Keep in mind the taste and texture will differ, and you might need to adjust sugar levels for sweetness balance.

How can I make the cake more moist?

The boiled water mixed with cocoa powder helps keep the cake moist, but ensuring not to overbake and chilling the cake properly before frosting will also keep it soft and tender.

Can I double this Simple Chocolate Cake with Peanut Butter Frosting Recipe?

Yes! Just double all ingredients and bake in a larger pan, or split the batter into two pans for layered cakes. Adjust baking time accordingly and check for doneness regularly to avoid overbaking.

Final Thoughts

There’s nothing quite like the harmony of rich chocolate and creamy peanut butter in a homemade cake, and this Simple Chocolate Cake with Peanut Butter Frosting Recipe truly delivers that magic. It’s easy to make, incredibly satisfying, and perfect for sharing with loved ones. Give it a try—you’re going to love every bite and might just find your new favorite dessert to bake again and again.