“Why choose between cake and candy when you can have both?” I thought as I surveyed my kitchen, a whirlwind of sweet ingredients across the counter. This Peanut Butter Cup Dump Cake combines the richness of peanut butter with a fudgy chocolate cake, all delightfully sprinkled with mini peanut butter cups. Not only is this dessert a show-stopper, but it also requires minimal effort with just five ingredients and a single pan—perfect for those busy days when you need something quick. Whether it’s a family gathering or an impromptu get-together, this easy dessert is bound to impress guests and family alike. Curious to discover how such a dreamy treat comes together with so little hassle? Let’s dive into the simple steps!
Why is this cake so irresistible?
Simplicity at Its Best: You’ll be delighted by how easy it is to prepare this cake, requiring just five simple ingredients and one pan.
Decadent Flavor: The combination of melting peanut butter cups and rich chocolate cake creates an indulgent treat that leaves everyone craving more.
Impressive Presentation: This cake layers beautifully, making it a stunning centerpiece for any dessert table.
Crowd-Pleaser: Whether it’s a family gathering or a casual get-together, this Peanut Butter Cup Dump Cake never fails to win hearts.
Versatile Options: Feel free to substitute flavors, like using a funfetti cake mix or adding nuts for extra crunch, ensuring every bake can be unique!
Quick and Convenient: It takes only minutes to whip together, so you can spend more time enjoying dessert with friends and family or try other delicious options like Blueberry Buttermilk Pancake Casserole when you’re short on time!
Peanut Butter Cup Dump Cake Ingredients
For the Cake
- Peanut Butter – Adds rich flavor and moisture; let it sit at room temperature for easier spreading.
- Chocolate Cake Mix – Provides structure and sweetness; use any chocolate cake mix; do not substitute with a non-chocolate mix.
- Melted Butter – Adds richness and moisture; can be substituted with a neutral oil for a lighter option.
- Milk – Helps achieve a pourable batter consistency; adjust quantity for desired thickness.
- Mini Peanut Butter Cups – Adds pockets of creamy sweetness and texture; can be substituted with other chocolate candies or omitted for fewer calories.
Step‑by‑Step Instructions for Peanut Butter Cup Dump Cake
Step 1: Preheat the Oven
Begin by preheating your oven to 350°F (175°C). While the oven warms up, grab a 9×13-inch baking dish and generously grease it with cooking spray or butter to ensure an easy release once your Peanut Butter Cup Dump Cake is done baking. This step sets the foundation for perfectly baked cake layers.
Step 2: Spread the Peanut Butter
Once your oven is preheated, take room-temperature peanut butter and spread it evenly across the bottom of the greased baking dish. Use a spatula for smooth coverage, ensuring that the entire bottom is coated. This layer of rich peanut butter will provide a deliciously gooey base that complements the chocolate cake beautifully.
Step 3: Prepare the Cake Batter
In a large mixing bowl, combine the chocolate cake mix, melted butter, and milk. Whisk the ingredients together until the mixture is smooth with minimal lumps. This should take about 2-3 minutes. The batter will be thick and glossy, and you can clearly see the deep chocolate color, which serves as the next layer for your Peanut Butter Cup Dump Cake.
Step 4: Add the Cake Batter
Pour the prepared chocolate batter over the layer of peanut butter in the baking dish. Use a spatula to gently spread the batter evenly, making sure to cover the peanut butter layer completely. This combination of flavors will create a harmonious blend of sweetness and richness as the cake bakes.
Step 5: Top with Candies
Next, sprinkle the mini peanut butter cups and chocolate chips generously over the batter. Make sure they are spread evenly to ensure pockets of creamy peanut butter candy melt throughout the cake as it bakes. This will enhance the gooey texture and add delightful bursts of flavor in every bite of your Peanut Butter Cup Dump Cake.
Step 6: Bake the Cake
Now it’s time to bake your creation! Place the baking dish in the preheated oven and let it bake for 35-40 minutes. Keep an eye on the edges; they should begin to pull away from the sides of the dish. Use a toothpick to check doneness—insert it into the center; it should come out with a few moist crumbs attached for the perfect consistency.
Step 7: Cool and Serve
Once baked to perfection, remove the Peanut Butter Cup Dump Cake from the oven and allow it to cool for at least 15 minutes. This will help it set, making it easier to slice. As it cools, you’ll notice the luscious layers coming together, ready to be served warm or at room temperature to friends and family.
Make Ahead Options
These Peanut Butter Cup Dump Cake delights are perfect for meal prep enthusiasts! You can prepare the peanut butter layer and the chocolate cake batter up to 24 hours in advance. Simply spread the room-temperature peanut butter in the baking dish and store it covered in the fridge. Prepare your chocolate batter (mix the cake mix, melted butter, and milk) and refrigerate it separately. When you’re ready to bake, simply pour the cold batter over the chilled peanut butter layer, sprinkle with mini peanut butter cups, and bake. This method maintains quality and ensures a quick, stress-free dessert prep on busy days, delivering that same gooey delight everyone loves!
Peanut Butter Cup Dump Cake Variations
Feel free to get creative with your Peanut Butter Cup Dump Cake—it’s thoroughly versatile!
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Yellow Cake Mix: Swap chocolate cake mix for yellow cake mix for a lighter flavor that still delivers on sweetness.
Wouldn’t a slice of this delightful creation brighten up any table? Yum! -
Funfetti Surprise: Use a funfetti cake mix to add a celebratory touch that’s perfect for birthdays or family gatherings. The extra sprinkles create bursts of color and joy in every bite!
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Nutty Addition: Mix in chopped nuts to the cake batter for extra crunch and nuttiness. Walnuts or pecans add a lovely texture that beautifully contrasts with the soft cake.
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Almond Butter Twist: Substitute peanut butter with almond butter for a unique flavor profile that still captures that nutty essence. The almond flavor will surprise and delight your taste buds.
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Chocolate Candy Swap: If you’re feeling adventurous, try using chopped Reese’s Pieces or Snickers instead of mini peanut butter cups for a different candy experience. Each bite will be a delightful surprise!
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Spicy Kick: Add a pinch of cayenne or chili powder to the cake batter for a subtle heat that complements the sweetness. It’s an unexpected twist that can elevate your dessert game!
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Dairy-Free Delight: Swap milk for almond or oat milk and opt for a dairy-free butter alternative to create a dairy-free version of this delicious cake. It won’t compromise the luscious flavors!
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Optional Frosting: For the ultimate indulgence, top your cooled cake with a drizzle of chocolate ganache or a scoop of your favorite ice cream, like in this Garlic Butter Steak pairing.
Embrace these ideas and make this recipe truly yours! Whether you’re hosting a gathering or simply indulging, feel free to personalize it to suit your cravings.
What to Serve with Irresistible Peanut Butter Cup Dump Cake?
Indulge your senses and elevate your dessert game with delightful sides and pairings that enhance each sweet bite of this decadent treat.
- Creamy Vanilla Ice Cream: Topped on a warm slice, it contrasts the fudgy texture with a cold and creamy delight.
- Fresh Berries: Bright strawberries or raspberries add a refreshing tartness that cuts through the richness and brings color to your plate.
- Chocolate Sauce Drizzle: A drizzle of chocolate sauce intensifies the chocolate flavor, making each bite even more indulgent.
- Crushed Nuts: Chopped peanuts or walnuts provide a satisfying crunch, enhancing the overall texture while complementing the peanut butter flavor.
- Whipped Cream: Light and fluffy, whipped cream adds an airy feel that balances the dense cake perfectly.
- Coffee or Espresso: Serve alongside a cup of rich coffee, which provides a lovely contrast and enhances the dessert’s sweet, nutty notes.
- Milkshake: A creamy chocolate or peanut butter milkshake makes a fun, nostalgic pairing to satisfy your sweet tooth.
- Caramel Sauce: For an extra layer of indulgence, drizzle with warm caramel sauce, creating a delightful and rich experience.
- Mint Tea: Offering a refreshing finish, mint tea cleanses the palate while still satisfying that sweet craving.
Expert Tips for Peanut Butter Cup Dump Cake
- Use Room Temperature Peanut Butter: Ensure the peanut butter is at room temperature for easy spreading and to create a smooth base.
- Don’t Overmix: Mixing too much can lead to a dense texture. Stir until just combined for a light and fluffy cake.
- Check for Doneness: Use a toothpick; it should come out with moist crumbs, not wet batter, to ensure the perfect peanut butter cup dump cake.
- Customize Wisely: Feel free to experiment with different chocolate candies, but avoid using non-chocolate mixes for the cake base to maintain the intended flavor.
- Cool Properly: Allow the cake to cool for at least 15 minutes; this helps it set up, ensuring easier slicing and serving.
How to Store and Freeze Peanut Butter Cup Dump Cake
Room Temperature: Keep the cake stored in an airtight container at room temperature for up to 3 days. The flavors will deepen, making it even more delicious!
Fridge: If you prefer, you can refrigerate the cake for an extended freshness, lasting up to 5 days. Just make sure it’s well-wrapped to avoid drying out.
Freezer: To freeze leftovers, wrap individual slices tightly in plastic wrap and place them in a freezer-safe bag. They can last up to 3 months in the freezer for a sweet treat later on.
Reheating: When ready to enjoy, simply microwave slices for 15 seconds or pop them in the oven at low heat to bring back that gooey charm of your Peanut Butter Cup Dump Cake.
Peanut Butter Cup Dump Cake Recipe FAQs
What kind of peanut butter should I use for this cake?
Absolutely! I recommend using creamy peanut butter for a smooth texture that spreads easily. If you prefer crunchy peanut butter, that works too, just be aware it’ll add a bit more texture to the cake. Ensure it’s at room temperature for easier spreading on the bottom of the pan.
How long can I store leftover dump cake?
You can store this Peanut Butter Cup Dump Cake in an airtight container at room temperature for up to 3 days. Storing it at room temperature allows the delightful flavors to deepen, making it even better the next day! If you prefer, refrigerate it, and it will last for about 5 days.
Can I freeze the Peanut Butter Cup Dump Cake?
Very! Freezing this cake is a fantastic option for enjoying it later. To do so, let the cake cool completely. Wrap individual slices tightly in plastic wrap, then place them into a freezer-safe bag. It can be frozen for up to 3 months. When you’re ready to enjoy a slice, simply microwave it for 15 seconds or reheat it in the oven until warm.
What if my cake comes out too gooey?
If your Peanut Butter Cup Dump Cake comes out too gooey, it might be due to underbaking. Always check for doneness by inserting a toothpick; it should come out with moist crumbs rather than wet batter. If you’re unsure, give it a few extra minutes in the oven. Each oven can vary slightly, so sometimes a little additional time is necessary for that perfect bake.
Is this recipe suitable for people with nut allergies?
Unfortunately, this cake isn’t suitable for those with nut allergies because of the peanut butter and mini peanut butter cups. However, you can adapt the recipe by swapping peanut butter for sun butter or another nut-free spread, and simply use nut-free candies or chocolate chips to make it a safe dessert for everyone!
Can I use a different cake mix?
Sure thing! While chocolate cake mix is traditional for maintaining that rich flavor, you can experiment with yellow or vanilla cake mixes for a different taste experience. For a festive twist, a funfetti cake mix can also add a splash of color and fun to your Peanut Butter Cup Dump Cake!

Irresistibly Gooey Peanut Butter Cup Dump Cake You’ll Love
Ingredients
Equipment
Method
- Preheat your oven to 350°F (175°C) and grease a 9x13-inch baking dish.
- Spread room-temperature peanut butter evenly across the bottom of the greased baking dish.
- In a large mixing bowl, combine chocolate cake mix, melted butter, and milk. Whisk until smooth with minimal lumps.
- Pour the prepared chocolate batter over the layer of peanut butter and spread evenly.
- Sprinkle mini peanut butter cups and chocolate chips over the batter evenly.
- Bake for 35-40 minutes until edges pull away from the sides. Check doneness with a toothpick.
- Cool for at least 15 minutes before serving warm or at room temperature.
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