This incredible brownie cake recipe is a true game-changer, artfully combining two convenient box mixes to craft the easiest yet most intensely fudgy brownie cake imaginable. Nestled within its rich chocolate layers is a luscious, creamy peanut butter cheesecake filling, creating a symphony of flavors that will delight any dessert enthusiast. To crown this masterpiece, it’s elegantly drizzled with decadent chocolate ganache and a smooth peanut butter glaze, culminating in a dessert that’s as beautiful as it is delicious.
Prepare for an irresistible indulgence! Chocolate aficionados will be captivated by the deep, intense flavor of this rich chocolate cake, while peanut butter lovers will find themselves swooning over the velvety, dreamy cheesecake filling. This dessert effortlessly merges two beloved classics into one extraordinary treat, promising a dessert experience that satisfies every sweet craving.

The next time you’re searching for an effortless dessert that promises to impress and satisfy even the most demanding sweet tooth, look no further. This irresistible fudgy cake, brimming with peanut buttery goodness and chocolatey delight, is your perfect solution. It’s a surprisingly simple recipe that yields a professional-looking and tasting dessert, ideal for any occasion from casual family gatherings to elegant dinner parties.

Common Questions About Our Decadent Brownie Cake
We understand you might have a few questions before diving into this incredible recipe. Here are some of the most frequently asked questions about our easy brownie cake, designed to help you bake with confidence.
What is this amazing brownie cake made of?
Our unique brownie cake is a clever fusion of textures and flavors. It begins with rich cake layers created by expertly blending a classic brownie mix and a moist chocolate cake mix. This innovative combination results in a cake that boasts the best qualities of both – the dense, fudgy richness of a brownie with the tender, airy crumb of a cake. The center is then generously filled with a velvety peanut butter cheesecake filling, adding a creamy, tangy contrast. Finally, it’s lavished with a luxurious drizzle of smooth chocolate ganache and creamy peanut butter, elevating every bite into a truly extraordinary experience.
How do you enjoy this incredible brownie cake?
The simplest answer? With pure delight and a fork! This cake is a complete dessert on its own, a perfect symphony of flavors and textures. However, if you wish to enhance the experience, there are many delicious accompaniments. Consider topping a slice with fresh berries for a touch of tartness, a dollop of fluffy whipped cream for added lightness, or a scoop of your favorite vanilla ice cream for a delightful warm-and-cold contrast. A glass of cold milk or a hot cup of coffee also makes for an excellent pairing.

Is it safe to taste the brownie batter before baking?
While the raw brownie batter can be incredibly tempting, the general consensus among food safety experts is that it is unsafe to consume batter that contains raw eggs. Raw eggs may carry a risk of salmonella. For your safety and peace of mind, it’s always best to resist the urge and wait for the delicious, baked product. The good news is, this cake bakes up so quickly, you won’t have to wait long to enjoy it!
Storing Your Brownie Cake for Lasting Freshness
It’s entirely possible that this delectable cake will disappear quickly, leaving no leftovers! However, should you be lucky enough to have some slices remaining, proper storage ensures they stay fresh and delicious.
Refrigerator – For short-term storage, transfer any leftover cake to an airtight container. This will keep it fresh in the refrigerator for up to 3 days. To prevent drying out and absorb any lingering odors from your fridge, you can also wrap individual slices tightly with plastic wrap before placing them in the container.
Freezer – If you want to enjoy this treat later, it freezes beautifully. Wrap individual slices or larger portions tightly with plastic wrap, then place them in a freezer-safe container or a resealable freezer bag. This method will keep the cake fresh for up to 2-3 months. To thaw, simply transfer it to the refrigerator overnight or allow it to come to room temperature on the counter for a few hours before serving.

Expert Tips for Crafting the Ultimate Brownie Cake
While this recipe is incredibly straightforward, a few key tips can elevate your brownie cake from great to absolutely outstanding. Follow these simple suggestions for a perfect bake every time:
- Prevent Overflow: Always be sure to place your bundt pan on a sturdy baking sheet before putting it in the oven. This acts as a safeguard, catching any potential overflow if the batter rises more than expected, saving you from a messy oven cleanup.
- Room Temperature Ingredients: For the cheesecake filling, ensure your cream cheese and egg are at room temperature. This is crucial for achieving a perfectly smooth, lump-free filling that blends seamlessly with the other ingredients. Cold cream cheese will result in a clumpy texture.
- Avoid Overheating Cream: When making the ganache, heat the heavy cream until it’s warm and steamy, but do not let it boil. Boiling cream can scorch the chocolate and negatively impact the ganache’s texture and flavor. Gentle heat is key to a silky-smooth ganache.
- Grease Your Pan Thoroughly: Bundt cakes can be tricky to release. Make sure to grease your bundt pan generously with butter or a baking spray that contains flour, getting into every crevice. A light dusting of cocoa powder after greasing can also help prevent sticking and gives the cake a beautiful finish.
- Don’t Overmix the Batter: Once you’ve added the wet ingredients to the dry mixes, mix only until just combined. Overmixing can develop the gluten in the flour, leading to a tougher, less tender cake. A few small lumps are perfectly fine.
- Cool Completely: Resist the urge to drizzle your ganache and peanut butter onto a warm cake. The ganache will simply melt and run off. Allow the cake to cool completely on a wire rack before decorating for the best results and a beautiful, defined drizzle.
Essential Ingredients for Your Masterpiece
One of the best aspects of this recipe is that it uses readily available ingredients, many of which you might already have in your pantry. Using quality ingredients, even from a box mix, makes a difference in the final taste.
Cake Base: The foundation of our brownie cake is built on a smart combination for optimal flavor and texture.
- Boxed chocolate cake mix: Provides a light, moist crumb.
- Boxed brownie mix: Adds that irresistible fudgy density and deep chocolate flavor.
- Eggs: Binds the ingredients and adds richness.
- Water: Hydrates the mixes, contributing to moisture.
- Oil: Ensures a tender, rich texture.
Peanut Butter Cheesecake Filling: The creamy, dreamy heart of the cake.
- Cream cheese (softened): The base for a smooth, tangy cheesecake.
- Granulated sugar: Sweetens the filling.
- Egg: Adds structure and helps the filling set.
- Peanut butter (creamy): For that undeniable, delicious peanut butter flavor and creamy texture.
Chocolate Ganache: The glossy, decadent topping that adds visual appeal and rich chocolate goodness.
- Heavy cream: The essential liquid for creating a pourable ganache.
- Semi-sweet chocolate chips: Provide intense chocolate flavor without being overly sweet.
For Decorating: The finishing touches that make this cake truly spectacular.
- Peanut butter: For an extra drizzle of nutty flavor.
- Mini peanut butter cups (for garnish): Optional, but highly recommended for an extra pop of flavor and texture.

Essential Kitchen Supplies for Baking Success
You don’t need a professional kitchen to create this stunning dessert. Standard baking supplies are all you need for this simple recipe, making it accessible for bakers of all skill levels. Having the right tools ensures a smooth and enjoyable baking process.
- Bundt pan: Essential for achieving the cake’s distinctive and elegant shape. A 10-cup capacity is ideal.
- Large mixing bowl and medium mixing bowl: For preparing the cake batter and the cheesecake filling separately.
- Stand mixer with a paddle attachment or an electric mixer: While you can mix by hand, an electric mixer makes whipping the batter and filling much quicker and ensures a consistent, smooth texture.
- Rubber spatula: Perfect for scraping down the sides of the bowl to ensure all ingredients are incorporated and for folding in any additions.
- Wire rack: Crucial for cooling the cake evenly and allowing air to circulate, preventing sogginess.
- Measuring cups and spoons: For accurate ingredient measurements, which is key to successful baking.
- Baking sheet: To place under the bundt pan in the oven, as a precaution against any potential overflow.
Step-by-Step Guide: How to Make This Easy Chocolate Brownie Cake
This recipe is designed for ease, allowing you to achieve incredibly impressive results with minimal effort. Follow these simple steps to create a show-stopping dessert that tastes homemade from scratch.
Crafting the Cake Layers
- Begin by preheating your oven to 350°F (175°C) and generously greasing a 10-cup bundt pan with baking spray or butter, ensuring every crevice is coated.
- In a large mixing bowl, combine the chocolate cake mix, brownie mix, eggs, water, and oil. Mix on medium speed for about two minutes, or until the batter is just combined and smooth. Remember to follow the specific wet ingredient amounts listed on each box mix, as they might vary slightly. Use a rubber spatula to scrape down the sides of the bowl, ensuring all ingredients are fully incorporated.
- Pour approximately half of the prepared cake batter evenly into the bottom of your greased bundt pan.
Preparing the Peanut Butter Cheesecake Filling
- In a separate medium mixing bowl, add the softened cream cheese, granulated sugar, egg, and creamy peanut butter. Mix with an electric mixer until the mixture is completely smooth and free of any lumps.
- Carefully spoon dollops of this luscious peanut butter cheesecake mixture on top of the cake batter already in the bundt pan. Try to distribute it somewhat evenly, but don’t worry about perfection – the beauty is in the swirl!
- Gently pour the remaining cake batter over the peanut butter cheesecake filling, ensuring it covers the filling completely.
- Place the bundt pan onto a baking sheet (as a precaution against overflow) and transfer it to your preheated oven. Bake for 50-60 minutes, or until a wooden toothpick inserted into the center of the cake comes out clean.
- Once baked, allow the cake to cool in the pan for about 10 minutes. This crucial step helps the cake firm up before inversion. After 10 minutes, carefully invert the cake onto a wire rack to cool completely before decorating.
Whipping Up the Decadent Ganache
- Once your cake is completely cool, prepare the ganache. In a microwave-safe bowl, heat the heavy cream for 30 to 60 seconds until it’s warm and steamy, but not boiling.
- Slowly pour the semi-sweet chocolate chips into the heated cream. Let the mixture sit undisturbed for about 5 minutes to allow the chocolate chips to soften from the residual heat.
- After 5 minutes, gently stir the melted chocolate into the cream until the mixture is beautifully smooth, glossy, and uniform.
- Drizzle this rich chocolate ganache over the cooled cake, letting it cascade down the sides for a stunning visual effect.
Adding the Finishing Touches and Decorating
- In a small, microwave-safe bowl, melt the remaining peanut butter for about 20 seconds, or until it’s easily pourable.
- Spoon or drizzle the melted peanut butter over the ganache-covered cake, allowing it to artfully drip down the sides.
- For an extra layer of indulgence and a delightful crunch, add garnishes as desired. Mini peanut butter cups, chopped peanuts, or even a dusting of powdered sugar are fantastic options.

Perfect Pairings: What to Serve With Brownie Cake
This brownie cake is so inherently rich and decadent, it truly shines as a standalone dessert. However, if you’re looking to create an even more memorable culinary experience, we have a few delightful suggestions for pairings that will complement its exquisite flavors.
- Coffee: The bold, robust flavor of coffee creates a perfect counterpoint to the sweetness of the cake. A classic regular cup of coffee, a creamy latte, or a refreshing cold brew all pair exceptionally well, making it an ideal choice for an after-dinner treat or a luxurious brunch.
- Ice Cream: For a classic combination, a simple scoop of good quality vanilla ice cream will pair perfectly, providing a cooling contrast to the warm, rich cake. If you’re ready to double down on your indulgence, consider a scoop of rocky road or a decadent turtle ice cream to amplify the chocolate and nutty notes.
- Whipped Cream: A generous dollop of freshly made, slightly sweetened whipped cream offers an ideal textural match for this sweet treat. Its light, airy consistency and subtle sweetness beautifully balance the cake’s fudgy density and intense flavors.
- Fresh Berries: Bright, tart berries like raspberries or strawberries can cut through the richness of the cake, adding a refreshing burst of flavor and a beautiful splash of color.
- A Glass of Milk: For a simple yet comforting pairing, a cold glass of milk is always a classic choice with any chocolate and peanut butter dessert.
Why This Brownie Cake Will Become Your New Favorite Dessert
If you’re a devoted fan of the harmonious pairing of peanut butter and chocolate, there’s truly no compelling reason not to try making this decadent cake. It’s more than just a dessert; it’s an experience that offers numerous benefits beyond its incredible taste.
- Effortlessly Easy: The secret to this cake’s simplicity lies in the brilliant use of boxed mixes. This clever hack streamlines the baking process significantly, cutting down on prep time without compromising on flavor or texture. Additionally, the microwave plays a crucial role in quickly warming ingredients for both the creamy filling and the luscious ganache, making this recipe accessible for even novice bakers.
- Incredibly Versatile: This brownie cake is a fantastic dessert for any scenario. It’s a wonderful way to satisfy an unexpected sweet craving – just keep it around the house for easy snacking or a spontaneous treat. Beyond everyday indulgence, its impressive presentation and rich flavor make it perfect for special occasions, holiday gatherings, birthdays, or any event where you want to impress your guests without spending hours in the kitchen.
- Utmost Convenience: You won’t need to hunt for obscure or specialty ingredients for this recipe. All the components, from the cake mixes to the peanut butter and chocolate chips, are easily accessible at your local grocery store. This convenience means you can whip up this delightful cake whenever the craving strikes, or even at the last minute for an unexpected celebration.
- Crowd-Pleasing Flavors: The combination of rich chocolate and creamy peanut butter is a universally loved duo. This cake is guaranteed to be a hit with everyone who tries it, making it an excellent choice for potlucks, parties, or family dinners where you need a dessert that appeals to a wide range of tastes.
- Impressive Presentation: Despite its ease, the bundt shape, layered filling, and dual drizzles of ganache and peanut butter give this cake a sophisticated, bakery-quality appearance. It looks far more complex than it actually is to make, earning you well-deserved compliments!

Creative Variations and Delightful Add-Ins
While this brownie cake is perfect as written, don’t hesitate to make it your own by incorporating a few creative twists. Personalizing your cake is a fun way to explore new flavors and textures, making it truly your signature dessert.
- Chocolate and Peanut Butter Chips: Enhance the chocolate or peanut butter factor by tossing milk chocolate chips, dark chocolate chips, or extra peanut butter chips directly into the cake batter before baking. You can also sprinkle them on top as an additional garnish.
- From-Scratch Cake: If you enjoy baking from the ground up, feel free to substitute the box mixes with your favorite homemade chocolate cake batter and brownie batter recipes. This will add an extra layer of personalized touch and flavor complexity.
- Caramel Drizzle: For an even richer and sweeter profile, add a luxurious layer of caramel sauce as an additional topping, either alongside or instead of the ganache and peanut butter drizzles.
- Powdered Sugar Dusting: For a simpler, yet elegant finish, a light dusting of confectioner’s sugar (also known as powdered sugar) over the cooled cake can create a beautiful contrast and a touch of extra sweetness.
- Alternative Frosting: Instead of the traditional ganache and peanut butter drizzles, consider a creamy chocolate cream cheese frosting. You can achieve this by incorporating cocoa powder into a classic cream cheese frosting recipe, creating a rich, tangy, and pipeable topping.
- Flavor Extracts: A dash of vanilla extract is typically included, but consider adding a hint of almond extract or even a few drops of coffee extract (espresso powder) to the cake batter to further deepen and bring out the chocolate flavors. A touch of banana extract could also be interesting with the peanut butter.
- Nutty Crunch: Fold in chopped peanuts, pecans, or walnuts into the cake batter for an added textural element and nutty flavor. Alternatively, sprinkle them on top as a garnish.
- Mini Chocolate Candies: Besides mini peanut butter cups, consider using other mini chocolate candies like M&M’s, chopped Snickers, or even chopped chocolate bars as a fun and colorful garnish.

If you love this easy Brownie Cake recipe, you’re going to adore these other peanut butter and chocolate combinations too. Each of these recipes perfectly complements the rich flavors of chocolate and the creamy goodness of peanut butter. Please click each link below to discover the easy, printable recipe!
Classic Peanut Butter Blossom Cookies
Soft, chewy peanut butter cookies coated in sugar and topped with a Hershey kiss make these Classic Peanut Butter Blossom Cookies a perennial favorite. Perfect for cookie exchanges or a nostalgic treat.
Check out this recipe

Chocolate Cake with Peanut Butter Frosting
This Chocolate Cake with Peanut Butter Frosting is the ideal homemade cake recipe for celebrating birthdays, holidays, or any special occasion. A rich chocolate cake base topped with a smooth, sweet peanut butter frosting.
Check out this recipe

Peanut Butter Cup Cookies
Peanut Butter Cup Cookies offer the perfect blend of salty and sweet. Featuring a classic peanut butter cookie base, they are generously loaded with mini peanut butter cups and chocolate chips for an irresistible bite.
Check out this recipe

Chocolate Chip Peanut Butter Cookie Bars
These Chocolate Chip Peanut Butter Cookie Bars are soft and chewy, combining rich peanut butter cookie dough swirled with melted chocolate chips. They’re the perfect easy dessert for a crowd or simple weeknight treat!
Check out this recipe

Easy No-Bake Peanut Butter Balls
Easy No-Bake Peanut Butter Balls are a classic holiday dessert recipe that makes a great gift for friends and neighbors. Just like grandma used to make, these simple treats are always a hit!
Check out this recipe

Other Creative Cake Ideas to Explore
If you’ve enjoyed making this brownie cake, you might also be interested in exploring other creative and delicious cake recipes from our collection:
- S’mores Cake
- Zebra Cake
- Snickerdoodle Cake
- Apple Cider Donut Cake
If you love this easy Brownie Cake recipe as much as I do, please take a moment to write a five-star review below. Your feedback helps others discover delicious recipes! And don’t forget to share this amazing creation with your friends and family on Facebook and Pinterest!

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Brownie Cake
Course: Dessert
Servings: 16
Chocolate Brownie Bundt with Peanut Butter Cheesecake Filling. This Chocolate Brownie Bundt is amazing! Chocolate cake mix and brownie mix come together to make the richest chocolate cake you’ve ever had! Then add in a peanut butter cheesecake filling and it is heavenly! We drizzle this with ganache and peanut butter drizzle and plenty of peanut butter cups.
Print Recipe
Pin Recipe
Prep Time: 20 mins
Cook Time: 1 hr
Total Time: 1 hr 20 mins
Ingredients
Cake Batter
- 15.25 oz chocolate cake mix
- 18.3 oz brownie mix
- 4 eggs
- 1¼ cup water
- 1 cup oil
Peanut Butter Cheesecake Filling
- 8 ounces cream cheese, softened
- ⅓ cup granulated sugar
- 1 egg
- ¼ cup peanut butter, creamy
Ganache
- ½ cup heavy cream
- ½ cup semi-sweet chocolate chips
Decorate
- ½ cup peanut butter
- mini peanut butter cups – for garnish (optional)
Instructions
Cake
- Preheat the oven to 350 degrees F (175 C).
- Grease a 10-cup bundt pan thoroughly. Set aside.
- In a large mixing bowl, combine the cake mix, brownie mix, eggs, water, and oil. Mix for about 2 minutes until just combined. Ensure you add the specific wet ingredients listed on the back of *both* box mixes.
- Pour half of the prepared cake batter into the greased bundt pan.
Peanut Butter Cheesecake Filling
- In a medium mixing bowl, combine the softened cream cheese, granulated sugar, egg, and peanut butter. Mix until completely smooth.
- Add spoonfuls of the peanut butter cheesecake mixture on top of the first layer of cake batter in the bundt pan.
- Top with the remaining cake batter, ensuring the cheesecake layer is covered.
- Place the bundt pan on a baking sheet and bake for 50-60 minutes, or until a toothpick inserted into the center of the cake comes out clean.
- Cool the cake in the pan for 10 minutes before inverting it onto a wire rack to cool completely.
Ganache
- Once the cake is cool, heat the heavy cream in the microwave for 30 to 60 seconds until warm and steamy (do not boil).
- Carefully add the chocolate chips to the hot cream and let them sit undisturbed for 5 minutes to soften.
- Stir the chocolate and cream together until melted and shiny.
- Drizzle the chocolate ganache all over the top of the cooled cake.
Decorate
- In a small microwave-safe bowl, melt the peanut butter for about 20 seconds until pourable.
- Drizzle the melted peanut butter over the top of the cake, allowing it to drip down the sides.
- Add any chopped or whole mini Reese’s peanut butter cups or other garnishes if desired.
Notes
- Store the cake in an airtight container in the refrigerator for up to 3 days.
- Do not skip placing the bundt pan on a baking sheet before baking; overflow can sometimes happen through the middle hole, so it is better to be safe.
- You can add chocolate chips or peanut butter chips to the cake batter for extra flavor and texture.
- Chocolate or peanut butter chips also make a great garnish on top of the finished cake.
- You can substitute milk chocolate for semi-sweet chocolate chips in the ganache if you prefer a sweeter ganache.
Equipment
- Bundt pan (10-cup)
- Large mixing bowl
- Medium mixing bowl
- Electric mixer or stand mixer
- Rubber spatula
- Wire rack
- Baking sheet
- Measuring cups and spoons
Nutrition
Serving: 1g | Calories: 598kcal | Carbohydrates: 56g | Protein: 9g | Fat: 39g | Saturated Fat: 10g | Cholesterol: 74mg | Sodium: 437mg | Potassium: 234mg | Fiber: 2g | Sugar: 35g | Vitamin C: 0.04mg | Calcium: 77mg | Iron: 3mg | Net Carbohydrates: 54g
Nutritional information for the recipe is provided as a courtesy and is approximate. Please double-check with your own dietary calculator for the best accuracy. We at Yummi Haus cannot guarantee the accuracy of the nutritional information given for any recipe on this site.
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