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    Home » Recipes » Cakes and Muffins

    Chocolate Peanut Butter Cup Dump Cake

    Published: Feb 15, 2026 · Modified: Mar 2, 2026 by Andrea · This post may contain affiliate links · 1 Comment

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    Jump to Recipe·5 from 1 review

    This chocolate peanut butter cup dump cake is rich, chocolaty, decadent and delicious! The best dessert for the chocolate peanut butter lovers!

    Slice of chocolate peanut butter cup dump cake on a white plate.
    Jump to:
    • Ingredients
    • Step-by-Step Instructions
    • Storage & Leftovers
    • Related Recipes
    • 📖 Recipe
    • 💬 Comments

    If you love the combination of chocolate and peanut butter, then you'll love this recipe!

    My favourite chocolate is Reese's Pieces peanut butter cups, so naturally, I make this dump cake a lot! It's so good and quick to make with just a few simple ingredients.

    Ingredients

    • Milk
    • Boxed Chocolate Cake Mix
    • Instant Chocolate Pudding Mix
    • Reese's Peanut Butter Cups
    • Coolwhip
    • Peanut Butter
    • Chocolate Syrup (optional)

    See the recipe card below for the ingredient measurements. 

    Step-by-Step Instructions

    Step 1 - Prepare: Preheat the oven to 350°F and grease a 9x13 baking dish.

    Step 2 - Mix: Add the milk, cake mix, and pudding mix to the baking dish and mix with a fork until combined and then fold in 1 cup of peanut butter cups.

    Milk in baking dish.
    Cake and pudding mix added to baking dish.
    Batter mixed together in the baking dish.
    Batter and peanut butter cups combined in baking dish.

    Step 3 - Bake: Bake the dump cake in the preheated oven on the middle rack uncovered for 25-30 minutes, until a toothpick comes out clean. Cool completely on a cooling rack before proceeding to the next step.

    Baked chocolate peanut butter cup dump cake from the oven.

    Step 4 - Serve: Evenly spread the Cool Whip on top and drizzle the peanut butter (that's slightly cooled) and chocolate sauce over top. Sprinkle ½ cup of peanut butter cups on top to garnish.

    Cooled dump cake topped with whipped cream, peanut butter drizzle and peanut butter cups.

    Storage & Leftovers

    Poke a few toothpicks into the leftover cake and cover with plastic wrap or aluminum foil and store in the fridge for up to one week. It can also be stored in the freezer for up to three months in an airtight container.

    Fork with chocolate peanut butter cup dump cake on it.

    Related Recipes

    If you're looking for more easy dump cake recipes, then also try this chocolate pudding dump cake and chocolate cherry dump cake too!

    Some other chocolate peanut butter desserts you should also check out are these chocolate peanut butter blossoms and this no bake oreo peanut butter pie also!

    More easy chocolate cake recipes you may enjoy is this black forest cake with cake mix and this double chocolate bundt cake.

    Print

    📖 Recipe

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    Slice of chocolate peanut butter cup dump cake on a white plate.

    Chocolate Peanut Butter Cup Dump Cake


    5 Stars 4 Stars 3 Stars 2 Stars 1 Star

    5 from 1 review

    • Author: Andrea
    • Total Time: 30 minutes
    • Yield: 8
    • Diet: Vegetarian
    Save Recipe Recipe Saved
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    Description

    This chocolate peanut butter cup dump cake is rich, moist, chocolaty, tasty, and so easy to make! 


    Ingredients

    Units

    • Milk: 1 and ½ cups
    • Chocolate Cake Mix: 1 box (15.25 ounces)
    • Instant Chocolate Pudding Mix: 1 small package (3.9 ounces)
    • Mini Reese's Peanut Butter cups: 1 and ½ cups
    • Coolwhip: 8 ounces
    • Peanut Butter: ¼ cup, melted
    • Chocolate Syrup: ¼ cup


    Instructions

    1. Prepare: Preheat the oven to 350°F and grease a 9x13 baking dish.
    2. Mix: Add the milk, cake mix, and pudding mix to the baking dish and mix with a fork until combined and then fold in 1 cup of peanut butter cups.
    3. Bake: Bake the dump cake in the preheated oven on the middle rack uncovered for 25-30 minutes, until a toothpick comes out clean. Cool completely on a cooling rack before proceeding to the next step.
    4. Serve: Evenly spread the Cool Whip on top and drizzle the peanut butter (that's slightly cooled) and chocolate sauce over top. Sprinkle ½ cup of peanut butter cups on top to garnish (I usually chop these ones in half)!

    Equipment

    Image of 9x13 Baking Dish

    9x13 Baking Dish

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    Image of Cooling Rack

    Cooling Rack

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    Notes

    Ensure the cake is cooled completely or else the Cool Whip will melt.

    The melted peanut butter should not be hot when drizzling, otherwise it will melt the Cool Whip too. 

    Melting the peanut butter can be done in the microwave at 10-second intervals until it's melted. Then you can drizzle with a spoon or transfer to a sandwich ziplock bag and make a small cut at one of the corners to drizzle (like a piping bag).

    It's recommended to chill the dump cake for 1 hour before serving to allow the Cool Whip to set and the peanut butter to harden.

    To speed up cooling the cake, rest for 15 minutes, then transfer to the fridge.

    Consider using the bake of a spoon to frost the cake. This will give it a delicious whipped look!

    Nutrition facts are for informational purposes only. We are not responsible for any errors. We have tested the recipe for accuracy, but your results may vary. Please note that this is not medical or nutrition advice. Seek advice from a licensed professional if you need advice. We are not liable for any damages caused by your use of this content.

    • Prep Time: 5 minutes
    • Cook Time: 25 minutes
    • Category: Dessert
    • Method: Bake
    • Cuisine: American

    Did you make this recipe?

    I'd love to hear from you in the comment section below!

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    Comments

    1. Andrea says

      February 17, 2026 at 2:44 pm

      One of my favourite quick and easy desserts!! Chocolate, peanut butter and Reese’s pieces peanut butter cups…it doesn’t get much better! Did you like it?

      Reply

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    Recipe rating 5 Stars 4 Stars 3 Stars 2 Stars 1 Star

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    Hi & Welcome!

    I'm Andrea, the recipe developer, food photographer, blogger, and creator of Cup of Flour. Here I share all my tried and true recipes, all made with basic ingredients. I'm so happy you're here!

    About Andrea →

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