As I pulled the warm Peanut Butter Cup Dump Cake from the oven, the rich, chocolate aroma swirling around my kitchen felt like a comforting hug on a busy day. This 4-ingredient wonder is the ultimate easy dessert, ready in just 30 minutes and perfect for those times when life demands something sweet but you’re short on time. With no mixer required and the delightful surprise of gooey peanut butter cups melting into every bite, you’ll be amazed at how this quick preparation transforms your ordinary evening into a delightful treat. Trust me, everyone will be reaching for seconds! Are you ready to banish fast food and wow your loved ones with this delightful dessert?

Why is this cake so unforgettable?
Simplicity: With just four ingredients, this Peanut Butter Cup Dump Cake requires minimal prep time, making it a breeze for anyone, even busy families.
Decadent Flavor: The combination of rich chocolate and melting peanut butter cups creates a dessert that feels indulgent without the hassle.
Quick Bake Time: Ready in just 30 minutes, it’s perfect for last-minute gatherings or those sweet cravings that hit unexpectedly.
No Mixer Needed: Forget the complicated equipment! Mix it all by hand for a stress-free baking experience.
Crowd-Pleaser: Serve it warm with a scoop of ice cream for an impressive dessert that will have everyone coming back for more. If you love easy, delicious cakes, you might also enjoy my Christmas Spice Cake with Eggnog Buttercream or the festive Christmas Cupcakes too!
Peanut Butter Cup Dump Cake Ingredients
For the Cake Base
- Chocolate Cake Mix – Provides the delicious chocolate foundation for this decadent treat. Substitution: You can try using yellow cake mix with chocolate pudding for a different twist.
- Instant Pudding Mix – Adds an irresistible fudginess that takes this easy dessert to the next level. Note: While it can be omitted, adjust the milk to 1 cup if you do.
For the Moisture
- Milk – Binds the ingredients and ensures a moist texture. Use whole milk for creaminess; alternatives may alter the outcome.
For the Sweet Surprise
- Peanut Butter Cups – Bursts of chocolate and peanut butter bring sweetness and gooey joy throughout the cake. Substitution: Feel free to swap in other chocolate treats or even chocolate chips.
Step‑by‑Step Instructions for Peanut Butter Cup Dump Cake
Step 1: Mix Pudding and Milk
In a large mixing bowl, whisk together the instant pudding mix and 1¾ cups of milk until completely smooth and well combined. This should take about 2 minutes. You want the mixture to thicken slightly, creating a creamy base for your Peanut Butter Cup Dump Cake.
Step 2: Add Cake Mix
Next, gently fold in the chocolate cake mix. Stir until just blended—be careful not to overmix, as this can make the cake tough. The batter will be thick, showcasing that rich chocolaty goodness you expect in a decadent dump cake.
Step 3: Fold In Peanut Butter Cups
Roughly chop your peanut butter cups into bite-sized pieces. Carefully fold them into the batter, distributing them evenly throughout to ensure those delightful melty pockets in the finished cake. The sweet aroma and texture of peanut butter cups will make your mouth water while you prepare for baking.
Step 4: Bake
Pour the batter into a greased 13 x 9 inch baking dish, spreading it out evenly. Place the dish in a preheated oven at 350°F (180°C) and bake for about 25 minutes. You can tell it’s done when a toothpick inserted into the center comes out clean, signaling a fudgy, moist Peanut Butter Cup Dump Cake ready to shine.
Step 5: Cool and Serve
Once baked, remove the cake from the oven and let it cool slightly. This step is crucial for enhancing the flavors and making it easier to cut. Ideally, serve warm to enjoy the gooey, melted candy experience that this Peanut Butter Cup Dump Cake promises, perhaps with a scoop of vanilla ice cream on top!

How to Store and Freeze Peanut Butter Cup Dump Cake
Fridge: Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat by microwaving for 15-20 seconds until warmed through and fudgy.
Freezer: This cake can be frozen for up to 3 months. Wrap it well in plastic wrap followed by aluminum foil to prevent freezer burn. Thaw in the refrigerator before serving.
Reheating: For best taste, reheat slices in the microwave or warm them in the oven, covered with foil, at 350°F (180°C) for about 10-15 minutes.
Enjoying Later: The Peanut Butter Cup Dump Cake continues to impress even after storage, retaining its rich, gooey goodness that makes it an irresistible treat!
Peanut Butter Cup Dump Cake Variations
Feel free to explore these exciting ways to customize your Peanut Butter Cup Dump Cake, making it even more fun and delicious!
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Candy Bar Surprise: Swap peanut butter cups for your favorite candy bars like Snickers or M&Ms for a delightful twist. The different flavors will elevate your cake to new heights!
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Rich Chocolate Boost: Add a handful of chocolate chips to the batter for an extra chocolatey flavor. This will create pockets of melted goodness that your taste buds will adore.
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Sea Salt Sprinkle: Sprinkle a dash of sea salt on top of the batter before baking for a sweet-salty experience. This simple enhancement can take your cake to gourmet levels.
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Vanilla Cake Mix: For a lighter profile, substitute the chocolate cake mix with vanilla cake mix and use chocolate pudding. This twist makes for a fun and unique flavor combination.
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Nutty Texture: Incorporate chopped nuts like walnuts or pecans into the batter for added crunch. They’ll provide a delightful contrast to the gooey peanut butter cups.
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Fruity Addition: Add in some mashed bananas or applesauce for moisture and a hint of fruitiness. This addition will keep the cake moist while providing a new flavor dimension.
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Warm Spice: Sprinkle in a teaspoon of cinnamon or pumpkin spice for cozy warmth. Perfect for fall vibes, these spices will complement the chocolate beautifully.
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Chocolate Layer Cake: Want to take it up a notch? After baking, slice the cake into layers and spread whipped cream or frosting in between for a layered dessert that’s perfect for celebrations.
If you love the spirit of treating yourself, you might also enjoy making Christmas Carrot Cake Cookies or try your hand at a festive Christmas Peanut Butter treat!
Make Ahead Options
These Peanut Butter Cup Dump Cakes are a dream for busy home cooks looking to save time without sacrificing flavor! You can prepare the batter and refrigerate it up to 24 hours in advance, allowing the flavors to meld beautifully. To do this, mix the pudding and milk, then gently fold in the cake mix and chopped peanut butter cups. After prepping, cover the mixing bowl tightly and pop it in the fridge. When you’re ready to bake, just pour the batter into the greased baking dish and bake as directed. This simple make-ahead strategy ensures your dessert is just as delicious when it’s time to serve!
Expert Tips for Peanut Butter Cup Dump Cake
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Mix Gently: Avoid overmixing your batter to keep the cake light and fluffy. A few lumps are perfectly fine!
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Check Baker’s Timing: Ovens can vary, so start checking for doneness at 20 minutes to prevent overbaking.
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Chop Sizes Matter: Cut peanut butter cups into various sizes for delightful pockets of melted chocolate throughout the cake.
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Moisture Alternatives: If you’re out of whole milk, consider using buttermilk for an extra moist and tangy twist.
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Serve Warm: For the ultimate indulgence, serve your Peanut Butter Cup Dump Cake warm topped with vanilla ice cream or whipped cream.
What to Serve with Peanut Butter Cup Dump Cake?
Nothing complements the indulgence of this dessert like a few delightful sides and drinks, transforming your sweet treat into a complete feast.
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Vanilla Ice Cream: The cool and creamy texture elevates the fudgy warmth of the dump cake, creating a classic dessert pairing that never disappoints.
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Whipped Cream: Light and airy, whipped cream adds a touch of sweetness and a fluffy contrast to the dense cake, enhancing each bite.
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Chocolate Sauce: Drizzling rich chocolate sauce over the warm cake enhances its decadence, making every mouthful an even more luxurious experience.
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Fresh Berries: The tartness of fresh raspberries or strawberries cuts through the sweetness, providing a refreshing contrast and a pop of color to your plate.
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Coffee: A hot cup of coffee balances the sweetness while enhancing the chocolate flavors, making it an excellent pairing for dessert lovers.
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Milkshakes: Creamy peanut butter or chocolate milkshakes echo the flavors of the cake, creating a nostalgic combination perfect for sharing with family and friends.
Enjoy these pairing options while relishing every gooey bite of your Peanut Butter Cup Dump Cake for a truly memorable dessert experience!

Peanut Butter Cup Dump Cake Recipe FAQs
What type of milk should I use for the cake?
I recommend using whole milk for the best creaminess and moisture in your Peanut Butter Cup Dump Cake. However, if you’re looking for a lighter option, you can substitute with almond milk or oat milk, although the texture might slightly differ.
How should I store my leftover Peanut Butter Cup Dump Cake?
Store any leftovers in an airtight container in the refrigerator for up to 3 days. This helps maintain the moisture and flavor. When you’re ready to enjoy it again, simply reheat it in the microwave for 15-20 seconds until it’s warmed through and delicious.
Can I freeze the Peanut Butter Cup Dump Cake?
Absolutely! You can freeze this cake for up to 3 months. To do this, allow it to cool completely, then wrap it tightly in plastic wrap followed by aluminum foil to prevent freezer burn. When you’re ready to enjoy it, thaw it in the refrigerator overnight before gently reheating.
What should I do if my cake isn’t baking evenly?
If you notice that your Peanut Butter Cup Dump Cake isn’t baking evenly, make sure your oven temperature is accurate. You can use an oven thermometer for this. Also, avoid opening the oven door frequently while baking, as this lets heat escape and can cause uneven baking. If the edges are overcooking while the center remains undercooked, try covering the pan loosely with aluminum foil to shield the sides.
Can I substitute peanut butter cups with other ingredients?
Yes, the more the merrier! You can swap peanut butter cups for other candies like Snickers, M&Ms, or even chocolate chips to create your unique twist on the dessert. Just keep in mind that different candies may melt differently, so adjust your expectations accordingly for gooeyness!
Is this dessert safe for people with nut allergies?
Not at all! Since the Peanut Butter Cup Dump Cake contains peanut butter cups, this dessert is not suitable for individuals with nut allergies. For a nut-free alternative, you might consider using caramel or other chocolate candies that are nut-free, ensuring everyone can enjoy a slice safely!

Peanut Butter Cup Dump Cake: Your Quick Comfort Dessert
Ingredients
Equipment
Method
- In a large mixing bowl, whisk together the instant pudding mix and 1¾ cups of milk until completely smooth and well combined. This should take about 2 minutes.
- Gently fold in the chocolate cake mix. Stir until just blended—be careful not to overmix, as this can make the cake tough.
- Roughly chop your peanut butter cups into bite-sized pieces. Carefully fold them into the batter, distributing them evenly throughout.
- Pour the batter into a greased 13 x 9 inch baking dish, spreading it out evenly. Place in a preheated oven at 350°F and bake for about 25 minutes.
- Remove the cake from the oven and let it cool slightly before serving warm, ideally with a scoop of vanilla ice cream.

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