As I flipped through my favorite dessert recipes one rainy afternoon, a familiar craving washed over me: the nostalgic union of chocolate and peanut butter. That’s when I stumbled upon the gem that is the Peanut Butter Cup Dump Cake. This easy dessert promises a gooey, mouthwatering experience that will make it an instant crowd-pleaser at any gathering. With minimal prep time and endless customization options, you can adapt this cake to fit any sweet tooth—whether you prefer a nutty crunch or a drizzle of chocolate syrup on top. The best part? You can serve it warm straight from the oven, paired with a scoop of ice cream, inviting everyone to dive in. Are you ready to indulge in this delightful combo of flavors?

Why is this cake a must-try?
Irresistible combination: The rich melding of chocolate and peanut butter creates an unforgettable flavor journey.
Effortless preparation: You only need a handful of ingredients, making it an easy dessert for any occasion.
Customizable options: Add your favorite toppings or switch up the cake mix for a unique twist—consider pairing it with our delightful Oatmeal Peanut Butter or Peanut Butter Spider for added fun!
Crowd-pleaser charm: Perfect for parties or family gatherings, this dump cake will have everyone coming back for seconds.
Warm and gooey perfection: Serve it hot with a scoop of vanilla ice cream, and watch it transform into a comforting dessert that warms the soul.
Peanut Butter Cup Dump Cake Ingredients
For the Cake Base
- Chocolate Cake Mix – A standard 15.25 oz box gives a rich, moist foundation for this delightful dessert.
- Sweetened Condensed Milk – Adds luscious moisture; for a lighter option, use evaporated milk instead.
- Milk – Any kind of milk works here, contributing to the cake’s overall moistness.
- Butter (melted) – Enriches flavors and helps bind ingredients; if needed, margarine serves as a suitable substitute.
For the Peanut Butter Mixture
- Creamy Peanut Butter – Offers a rich peanut flavor; feel free to use crunchy peanut butter for extra texture.
- Vanilla Extract – Enhances the overall flavor profile, adding an aromatic touch.
For the Toppings
- Mini Peanut Butter Cups – Melt into the cake for delightful chocolate-peanut butter bites throughout.
- Optional Chocolate Syrup – Drizzle on top for an extra burst of sweetness that complements the cake perfectly.
- Optional Whipped Cream or Vanilla Ice Cream – Serve alongside the warm cake to elevate your dessert experience.
Each of these ingredients plays a vital role in creating the ultimate Peanut Butter Cup Dump Cake, ensuring it’s not just another easy dessert—it’s a memorable indulgence filled with gooey bliss!
Step‑by‑Step Instructions for Peanut Butter Cup Dump Cake
Step 1: Prepare Peanut Butter Mixture
In a mixing bowl, combine sweetened condensed milk, milk, creamy peanut butter, and vanilla extract. Use a whisk to blend these ingredients until smooth and well combined, ensuring there are no lumps. This peanut butter mixture forms the moist foundation of your Peanut Butter Cup Dump Cake, and it should be creamy and inviting.
Step 2: Preheat Oven
Preheat your oven to 350°F (175°C) and prepare a 9×13 inch baking dish by greasing it lightly with butter or non-stick spray. This preparation is crucial as it prevents the cake from sticking, allowing for easier removal once baked. The warm oven will ensure even baking, resulting in a beautifully risen cake.
Step 3: Assemble Cake
Spread the peanut butter mixture evenly across the bottom of the greased baking dish. This layer will provide a rich, flavorful base. Next, take the chocolate cake mix and sprinkle it evenly over the peanut butter mixture, creating a distinct layer. This will form the delicious top layer of your Peanut Butter Cup Dump Cake.
Step 4: Add Butter and Peanut Butter Cups
Melt the butter and drizzle it generously over the layer of chocolate cake mix, ensuring it covers as much surface area as possible. Then, scatter the mini peanut butter cups evenly over the top. These will melt into the cake, creating delightful pockets of chocolate and peanut butter as it bakes.
Step 5: Bake
Place the assembled Peanut Butter Cup Dump Cake in the preheated oven and bake for 30-35 minutes. You’ll know it’s ready when the top turns a golden brown and a toothpick inserted comes out with moist crumbs. This ensures the cake is wonderfully gooey on the inside while maintaining a slightly crispy top.
Step 6: Cool
Once baked, remove the dish from the oven and let the cake cool on a wire rack for 15-20 minutes. This cooling period allows the flavors to meld and the cake to set, making it easier to cut into squares when serving. The aroma of chocolate and peanut butter fills your kitchen, enticing everyone around.
Step 7: Serve
For a delightful finish, drizzle optional chocolate syrup over the cake and add a generous dollop of whipped cream or a scoop of vanilla ice cream on top. Serve warm, allowing the gooey texture of the Peanut Butter Cup Dump Cake to shine through. It’s the perfect indulgent treat that invites everyone to savor each bite!

How to Store and Freeze Peanut Butter Cup Dump Cake
Room Temperature: Store covered at room temperature for up to 3 days, allowing the cake to maintain its delightful gooeyness for a few more indulgent bites.
Fridge: For longer freshness, refrigerate the cake for up to 1 week in an airtight container, which helps retain its rich flavors while keeping it moist.
Freezer: Freeze the Peanut Butter Cup Dump Cake for up to 3 months; wrap it tightly in plastic wrap and place it in a freezer-safe container to prevent freezer burn.
Reheating: When ready to enjoy, thaw in the fridge overnight, then warm in the microwave for 20-30 seconds before serving for that melt-in-your-mouth experience.
Peanut Butter Cup Dump Cake Variations
Feel free to explore and play with these delightful twists that bring new life to your Peanut Butter Cup Dump Cake!
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Crunchy Delight: Swap creamy peanut butter for crunchy to add extra texture and a delightful crunch to each bite.
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Flavorful Cake Mix: Experiment with flavored cake mixes, such as lemon or funfetti, to introduce a fruity or festive twist that surprises your taste buds.
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Peanut Butter Medley: Mix in a variety of peanut butter cup flavors, such as dark chocolate or white chocolate, for a delicious taste adventure everyone will love.
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Caramel Drizzle: Trade chocolate syrup for caramel sauce to create a sweet, buttery contrast that enhances the cake’s rich flavors.
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Spice It Up: Add a pinch of cayenne or cinnamon to the batter for an unexpected, but pleasant kick that warms up every decadent bite.
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Nutty Topping: Sprinkle crushed nuts like peanuts or pecans on top before baking for an added layer of flavor and crunchiness, reminiscent of a candy bar.
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Make It Frosted: Top your cooled cake with a layer of chocolate or cream cheese frosting for an indulgent, dessert-like finish that’s sure to impress.
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Mini Personal Servings: Bake the batter in individual ramekins or muffin tins for perfectly portioned mini dump cakes, perfect for a fun dessert at gatherings.
With these variations, you can make each experience unique while satisfying your sweet tooth. If you’re curious about more fun peanut butter-themed desserts, why not try our delightful Protein Frozen Peanut or the comforting taste of Maple Glazed Butternut? There’s so much exciting goodness waiting in every bite!
Make Ahead Options
Preparing the Peanut Butter Cup Dump Cake ahead of time is a fantastic way to save time on busy weeknights! You can mix the peanut butter mixture (sweetened condensed milk, milk, creamy peanut butter, and vanilla extract) and store it in the refrigerator for up to 24 hours. Additionally, you can assemble the entire cake without baking it, covering it tightly and refrigerating for up to 3 days. This way, the flavors meld beautifully while preserving the cake’s moistness. When you’re ready to serve, simply bake the cake as instructed, and enjoy the same gooey delight without the last-minute rush. Your guests will be none the wiser, and you’ll relish in the extra time saved!
What to Serve with Peanut Butter Cup Dump Cake
Indulging in a warm slice of dessert is even sweeter when accompanied by delightful pairings that enhance the experience.
- Creamy Vanilla Ice Cream: The cool, creamy texture perfectly contrasts the gooey cake, enhancing its rich flavors with every bite.
- Whipped Cream: Light and fluffy, it adds a touch of sweetness and creaminess that complements the dense richness of the cake.
- Hot Coffee: A warm cup of coffee brings out the chocolate notes and balances the sweetness, making it a comforting pairing for dessert.
- Milk: The classic combination; a tall glass of cold milk cools the palate and brings a nostalgic charm to the experience.
- Chocolate Syrup Drizzle: Drizzling extra chocolate syrup on top elevates the dessert to a whole new level of indulgence.
- Fresh Strawberries: The bright, tangy flavor of strawberries cuts through the richness and adds a refreshing contrast that’s simply irresistible.
- Caramel Sauce: Adding a drizzle of caramel brings a sweet, buttery flavor that perfectly complements the chocolate-peanut butter combination.
- Chai Tea: The warm spices in chai tea provide a comforting contrast to the sweetness, making it a perfect cozy match.
- Nuts: Optional crunchy toppings, like chopped peanuts or pecans, provide textural contrast and enhance the nutty flavors in the cake.
Expert Tips for Peanut Butter Cup Dump Cake
- Mix Thoroughly: Ensure the peanut butter mixture is well combined without lumps to achieve an even flavor throughout the Peanut Butter Cup Dump Cake.
- Don’t Overbake: Keep an eye on the cake in the last few minutes of baking to prevent a dry texture; it’s ready when the top is golden brown and a toothpick shows moist crumbs.
- Use Different Dish Sizes: For individual servings, consider using ramekins or muffin tins; just adjust the baking time accordingly for perfectly portioned treats.
- Store Properly: To keep your leftovers fresh, store them covered at room temperature for up to 3 days, or refrigerate for a week, maintaining that gooey goodness.
- Experiment with Toppings: Feel free to mix up your toppings; extra mini peanut butter cups or a drizzle of caramel can elevate the dessert even further.

Peanut Butter Cup Dump Cake Recipe FAQs
How do I choose ripe ingredients for my Peanut Butter Cup Dump Cake?
Absolutely! For the best results, ensure your peanut butter is smooth and not overly stiff; look for a product that stirs easily. If you’re using mini peanut butter cups, select those that are fresh and free from any dark spots, which indicate they might not be at their best.
What are the best storage methods for leftover Peanut Butter Cup Dump Cake?
Very simple! Store it covered at room temperature for up to 3 days to maintain that gooey texture. For longer storage, move it to the fridge in an airtight container where it will stay fresh for up to 1 week. Just be sure to let it come to room temperature before serving for the best flavor.
Can I freeze my Peanut Butter Cup Dump Cake? How?
Absolutely! To freeze it, wrap the cooled cake tightly in plastic wrap, then place it in a freezer-safe container. You can keep it frozen for up to 3 months. When you’re ready to enjoy, simply thaw it in the fridge overnight and then warm individual portions in the microwave for about 20-30 seconds for that fresh-from-the-oven taste.
What if my Peanut Butter Cup Dump Cake comes out too dry or overbaked?
No need to worry! If you suspect your cake might be overbaked, keep an eye on it during the last few minutes. A good test is to insert a toothpick; it should come out with moist crumbs, not clean. If it does turn out dry, serve it warm with a drizzle of chocolate syrup or a generous scoop of vanilla ice cream to bring back the moisture!
Are there any allergens in this recipe that I should be aware of?
Very important question! The main allergens in the Peanut Butter Cup Dump Cake include peanuts, gluten (from the cake mix), and dairy. If you’re serving guests with allergies, consider using gluten-free cake mix, almond or sunflower butter as alternatives to peanut butter, and a non-dairy milk and topping if required.
Can I customize the toppings on my Peanut Butter Cup Dump Cake?
The more the merrier! Customize your dump cake to your heart’s content by adding other favorite chocolates, drizzling caramel or flavored syrups, or even mixing in nuts or dried fruits. It’s such a versatile dessert, perfect for all your cravings!

Indulge in Gooey Peanut Butter Cup Dump Cake Bliss
Ingredients
Equipment
Method
- In a mixing bowl, combine sweetened condensed milk, milk, creamy peanut butter, and vanilla extract. Whisk until smooth.
- Preheat your oven to 350°F (175°C) and grease a 9x13 inch baking dish.
- Spread the peanut butter mixture evenly across the bottom of the greased baking dish.
- Sprinkle the chocolate cake mix evenly over the peanut butter mixture.
- Melt the butter and drizzle over the cake mix, then scatter mini peanut butter cups on top.
- Bake for 30-35 minutes until golden brown and a toothpick inserted comes out with moist crumbs.
- Let the cake cool on a wire rack for 15-20 minutes before serving.
- Drizzle chocolate syrup and add whipped cream or ice cream to serve warm.
