Prepare to meet your new dessert obsession. This Peanut Butter Cup Dump Cake is the absolute easiest and most decadent dessert you will ever make, delivering a stunning result that looks and tastes like it took hours. We’re talking about a moist, dark brown crumbled chocolate cake base, a rich layer of melted milk chocolate, and a glossy, warm peanut butter topping, all studded with softened, gloriously melted peanut butter cups. It’s a dream come true for any chocolate and peanut butter aficionado.
The beauty of this recipe lies in its simplicity. As the name suggests, you simply “dump” the ingredients into your baking dish and let the oven do all the magical work. The result is a wonderfully complex texture—part cake, part molten candy bar, and 100% irresistible. This is the perfect dessert for a last-minute potluck, a family gathering, or a quiet night in when only the most comforting treat will do.
The warm, glossy peanut butter topping with melted peanut butter cups is pure perfection.
Why This Molten Cake Will Become Your Go-To Dessert
This isn’t just another cake recipe; it’s a game-changer for enthusiastic home cooks who value spectacular results with minimal effort. Here’s why you’ll fall in love:
Unbelievably Simple: With just a few minutes of prep time, you can have this cake in the oven. There’s no complex mixing or special techniques required.
Layers of Decadence: From the crumbled chocolate cake foundation to the gooey melted chocolate, silky peanut butter, and soft candy chunks, every spoonful is an adventure in texture and flavor.
Visually Stunning: Just like the photos, this cake emerges from the oven with a glossy, molten top and those iconic fluted peanut butter cup edges, making it look incredibly impressive.
Crowd-Pleasing Flavor: The timeless combination of chocolate and peanut butter is a guaranteed hit with kids and adults alike, making it the star of any event.
The Ultimate Chocolate & Peanut Butter Pantry Pull
The magic of this Peanut Butter Cup Dump Cake comes from a few simple, powerful ingredients. Each one plays a critical role in creating the final gooey masterpiece.
For the Cake Foundation
Devil’s Food Cake Mix (1 box, 15.25 oz / 432g): This is our secret weapon. It provides the deep, dark brown crumbled chocolate base that perfectly balances the sweetness of the toppings.
Unsalted Butter (1 cup / 226g, melted): Melted butter is key to a dump cake. It soaks into the dry cake mix, baking it into a moist, tender, and incredibly rich foundation.
For the Gooey Toppings
Milk Chocolate Chips (1 cup / 170g): These melt into a luscious, rich layer that sits right on top of the cake, creating a distinct river of molten chocolate.
Creamy Peanut Butter (1 cup / 256g): Use a standard creamy peanut butter for that glossy, warm light brown layer. It melts beautifully and delivers that signature nutty flavor.
Full-Size Peanut Butter Cups (10, unwrapped): These are the stars of the show. Pressing them into the top allows them to soften and partially melt, revealing their fluted edges and dense peanut butter centers.
Mini Peanut Butter Cups (1/2 cup / 100g, roughly chopped): A final garnish that adds a bit of texture and an extra punch of peanut butter goodness.
Essential Tools for a Flawless Dump Cake
You don’t need any fancy equipment for this recipe, which is part of its charm. Here are the basics you’ll need to achieve that perfect result.
9×13 inch (23×33 cm) Baking Dish: The perfect size for getting the right layer thickness and an even bake.
Mixing Bowls: You’ll need a small, microwave-safe bowl to melt the peanut butter.
Spatula: A rubber or silicone spatula is essential for spreading the layers evenly.
Building Your Irresistible Peanut Butter Cup Dump Cake Layer by Layer
Follow these steps closely, paying attention to the sensory cues, to create a dessert that perfectly matches the gooey, delicious vision.
Step 1: Preparing the Chocolate Foundation
First, preheat your oven to 350°F (175°C). There’s no need to grease your 9×13 inch baking dish. Pour the entire box of dry Devil’s Food cake mix into the dish and use a spatula to spread it into an even layer.
Next, drizzle the 1 cup (226g) of melted butter as evenly as possible over the dry cake mix. Do not stir! This is the most crucial rule of a dump cake. The butter will create a wonderfully crumbled and moist texture as it bakes.
Look at the incredible layers in this easy Peanut Butter Cup Dump Cake!
Step 2: Creating the Molten Chocolate and Peanut Butter Layers
Sprinkle the 1 cup (170g) of milk chocolate chips evenly over the butter-soaked cake mix. Now, in a microwave-safe bowl, heat the 1 cup (256g) of creamy peanut butter for 30-45 seconds, or until it’s warm, glossy, and easily pourable. You’re looking for a smooth, liquid consistency.
Gently pour the warm peanut butter over the chocolate chips, using your spatula to carefully spread it towards the edges. It’s okay if it’s not perfect; it will all melt together beautifully in the oven.
Step 3: The Final Assembly and Bake
Now for the best part. Gently press the 10 full-size peanut butter cups into the peanut butter layer, spacing them out evenly. As the cake bakes, you’ll see them soften and meld into the gooey topping.
Bake for 30-35 minutes. You’ll know it’s done when the edges are bubbling and the center is mostly set. The top will be glossy, and you’ll see the peanut butter cups looking soft and partially melted. The smell will be absolutely intoxicating—a rich blend of baked chocolate and warm peanut butter.
Step 4: The Finishing Touches
Remove the cake from the oven and let it rest for about 15 minutes. This is important, as it allows the molten layers to set up slightly. While it’s still warm, sprinkle the ½ cup (100g) of chopped mini peanut butter cups over the top. For that final visual flourish, you can optionally drizzle a little extra melted peanut butter over the entire cake.
Pro Secrets for a Perfectly Gooey Dump Cake Every Time
Do Not Stir: It bears repeating. The magic of a dump cake is in the distinct layers. Resist the urge to mix the cake mix and butter.
Use Room Temperature Ingredients: While not essential, allowing your peanut butter to come to room temperature before melting will make it easier to pour and spread.
Don’t Overbake: The goal is a gooey, molten center. Overbaking will result in a drier, more cake-like texture. Keep an eye on it and pull it when the edges are bubbly.
Let It Rest: Allowing the cake to cool for at least 15 minutes before serving is crucial. It gives the layers time to set, ensuring you get a perfect scoop that holds its shape instead of a runny puddle.
Smart Storage, Reheating & Freezing Solutions
This Peanut Butter Cup Dump Cake is fantastic warm, but it’s also delicious later. Cover the baking dish tightly with plastic wrap or transfer leftovers to an airtight container. It will keep in the refrigerator for up to 4 days.
To reheat, simply microwave a single portion for 20-30 seconds until warm and gooey again. We do not recommend freezing this cake, as it can alter the texture of the melted candy layers upon thawing.
Delicious Pairings for Your Decadent Dessert
While this cake is a showstopper all on its own, a scoop of vanilla bean ice cream is the classic, perfect pairing. The cold creaminess cuts through the richness of the chocolate and peanut butter beautifully. For a cozy evening, a hot cup of coffee or a cold glass of milk is also a fantastic companion.
If you’re planning a full dessert spread, this cake sits beautifully alongside other crowd-pleasers. Consider adding our incredible Creme Brulee Cheesecake Cupcakes for a different flavor profile, or for fellow chocolate lovers, our Chocolate Orange Layer Cake is always a hit. And if you want a simple classic, you can never go wrong with a slice of truly Moist Banana Bread.
Your Top Questions Answered
Have a question? We’ve got you covered with answers to some of the most common queries about this recipe.
A dump cake is a very simple dessert where the ingredients are ‘dumped’ into the baking dish, usually without mixing. Typically, it involves a base of fruit or filling, followed by a dry cake mix, and topped with melted butter, which creates a gooey, cobbler-like topping as it bakes.
Absolutely! While Devil’s Food provides a rich, dark chocolate flavor, any standard chocolate cake mix like milk chocolate, dark chocolate fudge, or even a yellow or white cake mix would work. The flavor profile will change accordingly.
For the best visual result with a glossy, smooth top layer, creamy peanut butter is recommended. However, crunchy peanut butter will work and will add extra texture from the peanut pieces. It may not melt as smoothly.
Yes, due to the butter and the nature of the soft topping, it’s best to store any leftovers in an airtight container in the refrigerator for up to 4 days.
This cake is best served warm from the oven for the gooiest texture. You can assemble the layers ahead of time, cover, and refrigerate for a few hours before baking, but for optimal results, bake it just before you plan to serve it.
Ready to Bake? Here’s the Full Recipe
Below you’ll find the complete, printable recipe card with all the exact measurements and steps. Get ready to amaze your friends and family with this incredible Peanut Butter Cup Dump Cake!
FL Recipes
Peanut Butter Cup Dump Cake: The Ultimate Gooey Chocolate Treat
This Peanut Butter Cup Dump Cake is an incredibly easy and decadent dessert featuring layers of chocolate cake, melted milk chocolate, and creamy peanut butter, all topped with real peanut butter cups. A guaranteed crowd-pleaser for any occasion.
Preheat oven to 350°F (175°C). Pour the dry cake mix into a 9x13 inch baking dish and spread evenly. Drizzle the melted butter over the top. Do not stir.
Sprinkle the milk chocolate chips over the cake mix. In a microwave-safe bowl, warm the creamy peanut butter for 30-45 seconds until pourable, then pour and spread it over the chocolate chips.
Gently press the 10 full-size peanut butter cups into the peanut butter layer. Bake for 30-35 minutes, until the edges are bubbly and the center is mostly set.
Let the cake cool for 15 minutes. Sprinkle with the chopped mini peanut butter cups and serve warm.
Nutrition
Calories: 562kcalProtein: 8gFat: 32gFiber: 3g
Notes
Do Not Stir: Resist the urge to mix the cake mix and butter to ensure distinct, delicious layers. Don't Overbake: For the gooiest result, remove the cake from the oven as soon as the edges are bubbling. Let It Rest: Allowing the cake to cool for 15 minutes is crucial for the molten layers to set properly before serving.
The ultimate easy dessert: Peanut Butter Cup Dump Cake. Layers of chocolate cake, melted chocolate, and creamy peanut butter.
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Hi, I’m Emily Carter, and welcome to FL Recipes! I share simple, healthy recipes that make cooking easy, fun, and delicious for everyone. more about me »
