As I rummaged through my pantry one chilly afternoon, my eyes landed on a neglected box of chocolate cake mix. A spark of inspiration ignited! I could transform this humble mix into a show-stopping Peanut Butter Cup Dump Cake. With just a few simple ingredients, this easy dessert emerges from the oven as a warm, gooey masterpiece—perfect for cozy gatherings or midweek cravings. Not only is it a budget-friendly option that dazzles guests, but its customizable nature means you can add your favorite toppings to suit any occasion. Can’t wait to dig in? Keep reading to discover how you can whip up this crowd-pleaser that will have everyone reaching for seconds!

Why is this Peanut Butter Cup Dump Cake a must-try?
Irresistible Flavor: The blend of chocolate and creamy peanut butter creates a dessert that’s utterly delectable.
Effortless Preparation: With just a handful of ingredients, this cake mixes together in minutes, making it ideal for busy cooks.
Customizable Delight: Personalize your dessert by adding your favorite toppings or mixing in different peanut butter cup flavors.
Crowd-Pleasing Appeal: Perfect for potlucks or family gatherings, it’s a sure way to impress your guests.
Budget-Friendly Treat: Whip up this easy dessert without breaking the bank, proving that deliciousness doesn’t have to be expensive!
Peanut Butter Cup Dump Cake Ingredients
• Create your gooey masterpiece with these essential ingredients!
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For the Cake Base
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Chocolate Cake Mix – Use a standard 15.25 oz box for a rich, moist foundation.
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Sweetened Condensed Milk – Adds creaminess and sweetness; swap with evaporated milk for a lighter feel.
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Milk – Any variety works; helps maintain the cake’s moist texture.
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Butter (Melted) – Essential for binding and enhancing flavor; margarine can be a suitable alternative.
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For the Peanut Butter Flavor
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Creamy Peanut Butter – Delivers that signature taste; crunchy peanut butter can add delightful texture.
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Vanilla Extract – A touch of vanilla elevates the overall flavor with warmth.
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For the Delicious Add-Ins
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Mini Peanut Butter Cups – The star of the show; these melt into the cake for bursts of flavor—feel free to mix it up with different types!
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Optional Chocolate Syrup – Drizzle on top for an extra touch of sweetness and visual appeal.
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Optional Whipped Cream or Vanilla Ice Cream – Perfect toppings to enjoy with a warm slice of this Peanut Butter Cup Dump Cake.
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 or spatula to blend the ingredients until the mixture is smooth and well-combined, which should take about 2-3 minutes. This creamy blend will be the heart of your Peanut Butter Cup Dump Cake’s flavor.
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 cooking spray or butter. A well-greased dish will help your cake release easily after baking. Make sure the oven reaches the desired temperature before placing in your cake.
Step 3: Assemble Dump Cake
Pour the peanut butter mixture into the prepared baking dish, spreading it evenly across the bottom. Next, take a standard chocolate cake mix and evenly sprinkle it over the top of the peanut butter layer. Drizzle melted butter generously over the cake mix, ensuring even coverage to promote moisture as it bakes.
Step 4: Add Peanut Butter Cups
Distribute mini peanut butter cups evenly across the top of the cake mix layer. Gently press them down slightly so that they sink into the chocolate cake mix. This helps them melt beautifully during baking, creating delightful pockets of peanut butter goodness throughout your Peanut Butter Cup Dump Cake.
Step 5: Bake
Carefully place the assembled cake in the preheated oven and bake for 30-35 minutes. Keep an eye on your cake, and look for a golden-brown color and a set top. A toothpick should come out with moist crumbs—not fully clean, ensuring that gooey texture we crave in a dump cake.
Step 6: Cool
Once baked, remove the Peanut Butter Cup Dump Cake from the oven and let it cool in the baking dish on a wire rack for 15-20 minutes. This cooling period allows the cake to set and will make it easier to serve. The warm aroma will surely tempt your taste buds!
Step 7: Serve
For a delightful finishing touch, drizzle chocolate syrup over individual slices of the cake and consider adding whipped cream or a scoop of vanilla ice cream on top. Serve while warm to fully enjoy the melted peanut butter cups and the gooey consistency of this irresistible Peanut Butter Cup Dump Cake.

What to Serve with Peanut Butter Cup Dump Cake
Delight in a warm culinary experience that rounds out this gooey dessert perfectly.
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Vanilla Ice Cream: Creamy and cold, it adds a luscious contrast to the warm cake, melting slightly into the gooey layers. The first scoop is pure bliss, harmonizing flavors of chocolate and peanut butter beautifully.
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Whipped Cream: Light and fluffy, this topping enhances the richness of the dump cake, adding an airy touch. A dollop on top makes each bite feel indulgent yet balanced.
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Chilled Milk: This classic pairing provides a refreshing rinse to the palate after each sweet mouthful of cake. A tall glass of milk brings everyone back to childhood memories of soothing sweetness.
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Fresh Berries: Strawberries or raspberries offer a tart pop that brightens the dessert while adding a fresh element. Their vibrant colors also make the presentation more inviting.
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Coffee: A warm cup of coffee complements the dessert’s sweetness with its rich, bitter notes. It’s the perfect pairing for an evening gathering, enticing guests to relax and enjoy their treats.
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Chocolate Sauce Drizzle: Elevate the sweetness to new heights with an extra drizzle. This not only enhances the visual appeal but also adds another layer of chocolatey goodness.
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Chopped Nuts: Sprinkle some crushed peanuts or walnuts on top for a satisfying crunch. The texture contrast truly makes every bite of the warm cake even more intriguing!
Storage Tips for Peanut Butter Cup Dump Cake
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Room Temperature: Store leftover Peanut Butter Cup Dump Cake at room temperature, covered loosely, for up to 3 days to maintain its gooey texture.
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Fridge: Keep it in the refrigerator for up to 1 week in an airtight container to preserve freshness while enjoying those delightful flavors.
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Freezer: Freeze the cake in an airtight container for up to 3 months. To serve, thaw in the refrigerator overnight and reheat individual slices in the microwave.
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Reheating: Warm single slices in the microwave for 15-20 seconds, or until just heated through, to bring back that fresh-out-of-the-oven taste!
Expert Tips for Peanut Butter Cup Dump Cake
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Mix Thoroughly: Ensuring your peanut butter mixture is smooth prevents lumps, leading to an even flavor distribution in your Peanut Butter Cup Dump Cake.
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Check for Doneness: Keep a close eye on your cake to avoid overbaking. You want moist crumbs on the toothpick, not a completely clean one, for that gooey texture!
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Serve Warm: This cake is best enjoyed warm, as the melted peanut butter cups add to the delightful experience.
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Customize Portions: Consider using individual ramekins or muffin tins for personalized servings, adjusting baking time as needed.
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Topping Options: Play around with different toppings like crushed cookies or whipped cream to elevate your dessert experience!
Make Ahead Options
The Peanut Butter Cup Dump Cake is a fantastic candidate for meal prep, helping you save time on busy weeknights! You can prepare the peanut butter mixture and layer it in the baking dish up to 24 hours in advance—just cover it tightly with plastic wrap and refrigerate. Additionally, you can sprinkle the dry chocolate cake mix and press in the mini peanut butter cups right before baking to maintain their texture. When you’re ready to bake, simply let the dish sit at room temperature for about 30 minutes, then pop it in the oven according to the recipe instructions for delicious results that are just as gooey and flavorful!
Peanut Butter Cup Dump Cake Variations
Feel free to let your creativity shine and customize this delicious cake with these fun variations!
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Crunchy Peanut Butter: Swap creamy for crunchy peanut butter for added texture that gives every bite a delightful crunch.
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Flavorful Peanut Butter Cups: Try different varieties of peanut butter cups, like caramel-filled or dark chocolate, for unique taste surprises throughout the cake.
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Flavored Cake Mix: Use vanilla or lemon cake mix instead of chocolate for a surprising fruity twist that brightens up your dessert.
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Extra Chocolate Boost: Incorporate a handful of chocolate chips into the batter—this will deliver an extra layer of melted chocolate indulgence.
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Nutty Surprise: Mix in some chopped walnuts or pecans for a satisfying crunch that perfectly complements the gooey cake.
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Spicy Kick: Add a pinch of cinnamon or cayenne pepper to the peanut butter mixture for a warm and subtly spicy flavor twist.
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Classic Ice Cream Pairing: Serve with a scoop of vanilla ice cream or even try a chocolate or peanut butter flavor for enhanced creaminess.
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Crushed Cookie Topping: Sprinkle crushed graham crackers or Oreos on top before serving for added texture and an appealing visual contrast.
For more inspiration, why not try adding our scrumptious Garlic Butter Shrimp as a savory contrast to balance out the sweet? Or check out these delightful Breakfast Butter Swim Biscuits for a lovely treat any time of day. Happy baking!

Peanut Butter Cup Dump Cake Recipe FAQs
What type of chocolate cake mix works best for this recipe?
I recommend using a standard 15.25 oz box of chocolate cake mix. This size gives you the best results for a moist and rich cake base. While you can experiment with other flavors, chocolate pairs perfectly with the peanut butter cups for that irresistible flavor combination.
How should I store leftover Peanut Butter Cup Dump Cake?
Store leftovers in an airtight container in the refrigerator for up to 1 week. Alternatively, you can keep it at room temperature covered loosely for about 3 days. Make sure to let it cool completely before covering to maintain its texture!
Can I freeze this Peanut Butter Cup Dump Cake?
Absolutely! You can freeze the Peanut Butter Cup Dump Cake in an airtight container for up to 3 months. If you’re ready to enjoy it, thaw it in the refrigerator overnight and reheat individual slices in the microwave for about 15-20 seconds until warmed through. This keeps the gooey goodness intact!
What if my Peanut Butter Cup Dump Cake isn’t gooey enough?
If you find the cake is drying out, it may be due to overbaking. Next time, check for doneness a few minutes early and look for that golden-brown color. The toothpick should come out with moist crumbs, not completely clean, to ensure that gooey texture we all look for. Trust me—it’s worth the extra attention!
Is this Peanut Butter Cup Dump Cake suitable for those with nut allergies?
This recipe contains peanut butter and mini peanut butter cups, so it’s not suitable for those with nut allergies. If you need a nut-free alternative, consider using sun butter instead of peanut butter, and omit the mini peanut butter cups or substitute with chocolate chips or other nut-free candies.
Can I customize the toppings for the Peanut Butter Cup Dump Cake?
Very! You can personalize your cake by adding crushed cookies, chocolate chips, or drizzling with caramel sauce. Feel free to mix it up! Experimenting with different toppings can elevate the overall dessert experience.

Peanut Butter Cup Dump Cake - Gooey Dessert Delight!
Ingredients
Equipment
Method
- In a mixing bowl, combine sweetened condensed milk, milk, creamy peanut butter, and vanilla extract. Blend until smooth.
- Preheat your oven to 350°F (175°C) and grease a 9x13 inch baking dish.
- Pour the peanut butter mixture into the dish, spread evenly, and sprinkle the cake mix over the top. Drizzle melted butter on top.
- Distribute mini peanut butter cups over the cake mix layer. Press them down slightly.
- Bake for 30-35 minutes until golden brown, and a toothpick comes out with moist crumbs.
- Let cool in the dish on a wire rack for 15-20 minutes.
- Serve drizzled with chocolate syrup and topped with whipped cream or ice cream.

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