Many of us have faced that moment when the dessert table just needs that one showstopper to steal the spotlight. Enter the Gooey Peanut Butter Cup Dump Cake—a delightful fusion of chocolate and peanut butter that’s as satisfying to make as it is to devour. This easy dessert is not only a guaranteed crowd-pleaser for potlucks and gatherings, but its gooey texture makes it a comfort-food dream come true. Plus, the real magic lies in its customizable nature; feel free to throw in your favorite toppings or mix-ins for a personal touch. Curious to see how this rich creation comes together and what tasty surprises await you? Let’s dive in!

Why is this dump cake a must-try?
Easy to Make: With just a few simple steps, you can whip up this dessert without breaking a sweat. Crowd-Pleasing Delight: Impress your friends and family at gatherings with this irresistible treat that everyone will fight over. Gooey Goodness: Each bite is filled with a luscious combination of melted peanut butter cups and moist chocolate cake. Customizable: Make it your own by adding nuts, chocolate chips, or your favorite toppings. If you love easy desserts, this recipe can be a perfect follow-up to my Oatmeal Peanut Butter or the delightful Peanut Butter Spider. Make-Ahead Perfection: Prepare it in advance, making it a fantastic option for busy days or unexpected guests!
Peanut Butter Cup Dump Cake Ingredients
• Create your masterpiece with these essential ingredients!
For the Cake Base
- Chocolate Cake Mix – The foundation of the cake; choose a standard 15.25 oz box for optimal moisture and richness.
- Sweetened Condensed Milk – Adds essential moisture, creating a rich texture; can substitute with evaporated milk if you prefer a lighter option.
- Milk – Ensures the cake remains moist; any variety of milk works wonderfully.
- Melted Butter – A binding agent that enhances flavor; margarine can be used as a suitable substitute.
For the Flavor Booster
- Creamy Peanut Butter – Infuses the cake with a rich peanut flavor; try crunchy peanut butter for added texture.
- Vanilla Extract – Enhances the overall flavor profile; opt for pure vanilla for the best results.
For the Gooey Topping
- Mini Peanut Butter Cups – The star of the dessert that melts into delightful pockets throughout the cake.
- Optional Chocolate Syrup – Drizzle on top for an extra layer of sweetness.
- Optional Whipped Cream or Vanilla Ice Cream – Perfect accompaniments to balance the warm, gooey cake.
Get ready to embark on a delicious journey with your Peanut Butter Cup Dump Cake, where every bite is pure bliss!
Step‑by‑Step Instructions for Peanut Butter Cup Dump Cake
Step 1: Prepare Peanut Butter Mixture
In a mixing bowl, combine the sweetened condensed milk, milk, creamy peanut butter, and vanilla extract. Stir vigorously until the mixture is smooth and well blended, ensuring there are no lumps. This step builds the luscious peanut butter base for your Peanut Butter Cup Dump Cake.
Step 2: Preheat Oven
While your peanut butter mixture comes together, preheat your oven to 350°F (175°C). This temperature is perfect for creating a beautifully baked dump cake. At the same time, grease a 9×13-inch baking dish with butter or non-stick spray to prevent sticking, ensuring easy serving later on.
Step 3: Assemble Cake
Pour the prepared peanut butter mixture evenly into the greased baking dish, spreading it out smoothly to form a foundation. Next, sprinkle the chocolate cake mix over the top of the peanut butter layer, creating a delightful blanket that will soak up the flavors as it bakes, setting the stage for your irresistible Peanut Butter Cup Dump Cake.
Step 4: Add Butter
Take your melted butter and drizzle it evenly over the cake mix. Make sure to cover as much surface area as possible, allowing the butter to seep through the chocolate layer and mix into the cake. This crucial step will ensure a rich taste and a moist texture throughout when baked.
Step 5: Incorporate Peanut Butter Cups
Scatter the mini peanut butter cups generously on top of the cake mix, pressing them down slightly into the batter. These adorable, sweet morsels will melt as the cake bakes, providing gooey pockets of joy throughout your Peanut Butter Cup Dump Cake, making each bite even more delightful.
Step 6: Bake
Carefully place the assembled cake in your preheated oven. Bake for 30-35 minutes, keeping an eye on it towards the end. The cake is done when the top is golden brown and a toothpick inserted in the center comes out with moist crumbs, indicating that it’s perfectly gooey.
Step 7: Cool
Once baked, remove the Peanut Butter Cup Dump Cake from the oven and let it cool on a wire rack for about 15-20 minutes. This cooling period allows the cake to set slightly, making it easier to serve and enhancing the overall texture.
Step 8: Serve
To serve, drizzle your warm cake with chocolate syrup if desired, and offer whipped cream or vanilla ice cream on the side for an extra touch of indulgence. Each serving of the Peanut Butter Cup Dump Cake is a warm, gooey experience that your family and friends will adore.

How to Store and Freeze Peanut Butter Cup Dump Cake
Room Temperature: Keep the Peanut Butter Cup Dump Cake covered at room temperature for up to 3 days for optimal freshness and flavor.
Fridge: For longer storage, refrigerate the cake in an airtight container for up to a week, ensuring it stays moist and delicious.
Freezer: To freeze, wrap individual pieces tightly in plastic wrap and then foil; it will last up to 3 months. Thaw overnight in the fridge before enjoying.
Reheating: Warm individual slices in the microwave for about 20-30 seconds, or until gooey and delicious, perfect with a scoop of ice cream!
Expert Tips for Peanut Butter Cup Dump Cake
- Mix Thoroughly: Ensure the peanut butter mixture is well combined for even flavor distribution; lumps can affect the overall texture.
- Watch the Bake Time: Check the cake a few minutes early to avoid overbaking; the goal is a gooey consistency.
- Individual Servings: For a fun twist, consider using ramekins or muffin tins and adjust baking times for individual Peanut Butter Cup Dump Cakes.
- Storage Secrets: Store leftovers covered at room temperature for up to 3 days; refrigerate to maintain freshness if you won’t finish it quickly.
- Flavor Variations: Feel free to customize your cake with additional chocolate chips or nuts to elevate the flavors even further!
Peanut Butter Cup Dump Cake Variations
Get ready to delight your taste buds with these exciting twists on the classic Peanut Butter Cup Dump Cake!
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Nutty Crunch: Add chopped walnuts or pecans to the peanut butter mixture for a delightful textural contrast. The added crunch will elevate every gooey bite!
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Flavored Cake Mix: Swap the chocolate cake mix for vanilla or lemon-flavored cake mix to create a unique flavor profile. Imagine a bright lemon-infused cake with pockets of creamy peanut butter—absolutely refreshing!
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Chocolate Chip Boost: Incorporate a generous handful of semi-sweet or dark chocolate chips into the top layer for an intensified chocolate experience. This variation deepens the chocolate flavor, making it irresistible for true chocolate lovers.
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Nut-Free Option: Substitute the creamy peanut butter with sunflower seed butter to create a nut-free version everyone can enjoy. The resulting cake stays deliciously rich, bringing new life to the classic recipe.
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Add a Fruity Twist: Toss in some fresh blueberries or strawberries for a fruity burst of flavor. This mix not only brightens the cake, but also adds a naturally sweet and tangy note that’s hard to resist.
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Spicy Kick: Add a dash of cayenne pepper or cinnamon to the peanut butter mixture for a subtle hint of warmth. This spices things up and offers a surprising twist to the familiar flavors!
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Coffee Infusion: Mix in a tablespoon of espresso powder into your batter to deepen the chocolate flavor beautifully. Just think of the delicious synergy between rich chocolate and that cozy coffee kick.
Let your creativity flow! Customize your Peanut Butter Cup Dump Cake to reflect your tastes, and don’t forget to check out my other delightful recipes like Buttered Lobster Pasta or the sweet and spicy Easy Maple Glazed Butternut to keep the home-cooked goodness coming!
Make Ahead Options
These Gooey Peanut Butter Cup Dump Cakes are perfect for busy home cooks looking to save time during the week! You can prepare the peanut butter mixture up to 24 hours in advance by mixing together the sweetened condensed milk, milk, peanut butter, and vanilla extract; just store it in an airtight container in the refrigerator to maintain quality. The assembled cake can also be covered and refrigerated up to 3 days before baking. When you’re ready to enjoy this indulgent dessert, simply follow the remaining steps to bake the cake right before serving—it’ll emerge warm, gooey, and just as delicious as freshly made!
What to Serve With Gooey Peanut Butter Cup Dump Cake
Imagine a delightful spread that complements the rich, gooey experience of this crowd-pleasing dessert, creating a memorable meal.
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Vanilla Ice Cream: The cool creaminess perfectly balances the warm, rich flavors of the dump cake, making every bite heavenly.
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Chocolate Syrup Drizzle: A simple yet luxurious touch that enhances the chocolate notes while adding a glossy finish.
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Whipped Cream: Light and airy, a dollop of whipped cream adds a fluffy texture that harmonizes beautifully with the cake’s gooeyness.
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Fresh Berries: Bright, tart berries like raspberries or strawberries cut through the richness, offering a vibrant contrast on your plate.
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Coffee: A warm cup of coffee or espresso provides a complementary bitter flavor, enhancing the dessert’s sweetness.
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Chocolate Chip Cookies: For a delightful cookie combo, offering warm, chewy cookies alongside the dump cake provides texture variety and indulgence.
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Milk: A classic pair; the smoothness of cold milk is the ultimate complement, enhancing the nostalgic comfort of this dessert.
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Fruit Salad: A refreshing mix of seasonal fruits adds a crunchy texture and a touch of natural sweetness, balancing the cake’s richness.
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Nutty Snack Mix: A crunchy blend of nuts and pretzels introduces a fun savory element, contrasting the sweet and gooey aspects of the cake.

Peanut Butter Cup Dump Cake Recipe FAQs
How do I select the right chocolate cake mix?
Absolutely! When choosing your chocolate cake mix, look for a standard 15.25 oz box, which ensures optimal moisture and richness in your dump cake. You can also try different brands to find your favorite flavor profile, as some may have unique taste notes that can elevate your dessert experience.
What’s the best way to store leftover Peanut Butter Cup Dump Cake?
Store any leftovers covered at room temperature for up to 3 days, ensuring it stays soft and gooey. If you’d like to extend its freshness, move it to the fridge in an airtight container, where it will keep for about a week. Not only does this keep the cake moist, but it can also enhance the flavors as it settles.
Can I freeze Peanut Butter Cup Dump Cake?
Absolutely! To freeze, wrap individual slices tightly with plastic wrap and then with aluminum foil. This will keep your cake fresh for up to 3 months. Just remember to thaw it overnight in the fridge before reheating. To reheat, warm it in the microwave for about 20-30 seconds until it’s gooey and delightful!
What should I do if my dump cake is too dry?
If your Peanut Butter Cup Dump Cake turns out dry, it could be due to overbaking. Make sure to check for doneness a few minutes early, as the toothpick should come out with moist crumbs. If you find yourself with a dry cake, try serving it with a drizzle of chocolate syrup or a scoop of ice cream to add moisture back into each delicious bite.
Is this recipe suitable for dietary restrictions?
For those with nut allergies, you can simply replace the creamy peanut butter with sunflower seed butter, which provides a similar texture without the peanuts. Additionally, you can use gluten-free cake mix to accommodate gluten sensitivities. Always check labels to ensure other ingredients align with dietary needs.

Gooey Peanut Butter Cup Dump Cake for Ultimate Indulgence
Ingredients
Equipment
Method
- In a mixing bowl, combine the sweetened condensed milk, milk, creamy peanut butter, and vanilla extract. Stir until smooth.
- Preheat your oven to 350°F (175°C) and grease a 9x13-inch baking dish.
- Pour the peanut butter mixture into the greased baking dish and evenly sprinkle the chocolate cake mix over it.
- Drizzle melted butter evenly over the cake mix.
- Scatter mini peanut butter cups on top, pressing them slightly into the batter.
- Bake in the preheated oven for 30-35 minutes until golden brown and a toothpick inserted comes out with moist crumbs.
- Cool the cake on a wire rack for about 15-20 minutes before serving.
- Serve warm, drizzling with chocolate syrup and offering whipped cream or ice cream on the side.
