Peanut Butter Cup Dump Cake recipe

Peanut Butter Cup Dump Cake

There's something magical about dump cakes-they're effortless yet feel like a labor of love. This Peanut Butter Cup Dump Cake brings together the irresistible combo of rich chocolate and creamy peanut butter in a dessert that's as fun to make as it is to eat. Perfect for potlucks, game days, or whenever you crave a comforting treat with minimal effort, this cake disappears fast and always gets rave reviews. The secret? It's foolproof, fool-proof, and totally customizable to suit your cravings.

What Makes This Recipe Special

  • No mixer required-just dump, stir, and bake for a foolproof dessert every time.
  • Uses store-bought cake mix for maximum convenience without sacrificing flavor.
  • Includes chopped peanut butter cups both in the batter and as a topping for a double dose of peanut butter bliss.
  • The powdered sugar dusting adds a bakery-style finish that elevates the presentation effortlessly.
⏱ 50 mins
American
Servings 12

Ingredients

1 boxchocolate cake mix
1 cupcreamy peanut butter
1 cupmilk
1 cupchocolate chips
1 cuppeanut butter cups, chopped
1/2 cupvegetable oil
3 largeeggs
1 teaspoonvanilla extract
1 cuppowdered sugar (optional topping)

Nutrition

380 caloriesCalories

Per serving · Values are estimates

Instructions

1
Preheat your oven to 350°F. Grease a 9×13 inch baking dish.
2
In a large bowl, combine the chocolate cake mix and creamy peanut butter until a crumbly texture forms.
3
Mix in the milk, vegetable oil, eggs, and vanilla extract for a smooth, consistent batter.
4
Fold in chocolate chips and chopped peanut butter cups gently for added texture and flavor.
5
Spread the batter evenly in your prepared baking dish, smoothing the surface for uniform baking.
6
Bake for 35 minutes until the cake has risen, with a tempting aroma wafting through your kitchen.
7
Let the cake cool completely before dusting with powdered sugar for a sweet, elegant finish.

Essential Tips

Peanut butter choice

Use creamy peanut butter for a smoother texture, or swap in crunchy for added texture. Avoid natural peanut butter unless it's well-stirred, as it can separate and make the batter greasy.

Chopping peanut butter cups

Chop peanut butter cups into small pieces so they melt evenly into the batter without sinking to the bottom. A serrated knife works best for clean cuts.

Batter thickness

If the batter seems too thick after adding the milk, thin it slightly with an extra tablespoon of milk. The batter should be pourable but not runny.

Smoothing the batter

Use a spatula to spread the batter evenly in the pan before baking. This ensures the cake bakes uniformly and prevents overbrowning in spots.

Checking for doneness

The cake is done when a toothpick inserted in the center comes out clean or with a few moist crumbs. Overbaking can make the cake dry, so keep an eye on it starting at 30 minutes.

Smart Swaps & Variations

Gluten-free Swap the chocolate cake mix for a gluten-free version and ensure all other ingredients are certified gluten-free.
Vegan Use a vegan chocolate cake mix, plant-based milk, and vegan peanut butter cups to make this cake suitable for vegan diets.
Extra chocolatey Add 2 tablespoons of cocoa powder to the batter along with the cake mix for a deeper chocolate flavor.
Nut-free Replace peanut butter cups with milk chocolate chips and use sunflower seed butter in place of peanut butter for a nut-free version.

What to Serve With This

  • Vanilla ice cream or whipped cream for a classic pairing that balances the richness.
  • A tall glass of cold milk to complement the peanut butter and chocolate flavors.
  • During holidays like Halloween or Christmas, serve with festive sprinkles on top for a fun twist.
  • As a post-game snack or movie night treat when you want something indulgent yet easy.

Storage & Reheating

Storage

Store the cake in an airtight container at room temperature for up to 3 days. For longer storage, refrigerate for up to 5 days.

Reheating

Reheat individual slices in the microwave for 10-15 seconds to restore warmth without making the cake soggy. Alternatively, warm in a 300°F oven for 5-10 minutes to revive the texture.

Expert Chef Tips

  1. For a more intense peanut butter flavor, toast the peanut butter in a dry skillet over low heat for 2-3 minutes until it becomes fragrant and slightly darker. Let it cool before using in the recipe.
  2. Press extra peanut butter cups into the top of the batter right before baking so they sink partially into the cake, creating pockets of melty peanut butter goodness.
  3. Sprinkle a pinch of flaky sea salt over the powdered sugar dusting to enhance the sweet and salty contrast, balancing the rich flavors.

Equipment You’ll Need

  • 9×13 inch baking dish
  • Large mixing bowl
  • Spatula or wooden spoon
  • Fine-mesh sieve (for dusting powdered sugar)
  • Toothpick (for testing doneness)

Nutritional Benefits

  • Provides a good source of protein from peanut butter and eggs, making it slightly more balanced than traditional cakes.
  • Contains healthy fats from peanut butter and vegetable oil, which can help with satiety and slow sugar absorption.
  • The chocolate cake mix contributes to added sugars, so consider reducing the powdered sugar topping or using a sugar-free version for a lighter option.
  • One serving (about 1/16 of the cake) contains around 380 calories, 22g of fat, and 6g of protein, primarily from the peanut butter and eggs.

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Frequently Asked Questions

Can I use natural peanut butter in this recipe?

Yes, but stir it well before measuring and mix it thoroughly with the cake mix to prevent separation. Natural peanut butter can make the batter oilier, so you may need to adjust the milk slightly.

What's the best way to chop peanut butter cups evenly?

Chill the peanut butter cups in the freezer for 15 minutes before chopping. This firms them up, making them easier to cut into uniform pieces without squishing.

Can I make this cake ahead of time?

Absolutely! Bake the cake up to 2 days ahead and store it covered at room temperature. Dust with powdered sugar just before serving to keep it looking fresh.

How do I prevent the cake from sticking to the pan?

Grease the baking dish generously with butter or nonstick spray, and consider lining the bottom with parchment paper for extra insurance against sticking.

Can I use mini peanut butter cups instead of chopped ones?

Yes, but reduce the baking time by 3-5 minutes and watch closely for doneness, as mini cups melt faster and can cause the cake to bake unevenly.

What's the best way to dust powdered sugar evenly?

Use a fine-mesh sieve to dust the powdered sugar over the cake. For a decorative touch, sprinkle it in a zigzag pattern or stencil designs for special occasions.

Can I use a different type of cake mix?

While chocolate cake mix is traditional, you can experiment with other flavors like vanilla or spice cake mix. The peanut butter will pair well, though the flavor profile will change.

Why does my cake turn out too dry?

Overbaking or using too much cake mix relative to the wet ingredients can cause dryness. Measure the cake mix carefully and check for doneness starting at 30 minutes.

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