Indulgent Reese’s Chocolate Peanut Butter Cup Earthquake Cake Recipe

Introduction

The Indulgent Reese’s Chocolate Peanut Butter Cup Earthquake Cake is a decadent dessert that combines rich chocolate and creamy peanut butter for an unforgettable treat. With its gooey center and dramatic presentation, it’s perfect for any celebration or a cozy night in.

A thick square piece of chocolate peanut butter dessert sits on a white plate with a scoop of vanilla ice cream on the side. The dessert has four layers: the bottom layer is dark chocolate brownie with a moist texture, followed by a thin layer of creamy peanut butter with small chocolate chips embedded in it. Above this is a thicker peanut butter layer, smooth and slightly creamy, dotted with round chocolate chips. The top layer is glossy melted chocolate sprinkled with several small chocolate chips and several mini peanut butter cups, some of which are cut to show the peanut butter inside. The plate rests on a white marbled texture surface with soft natural light in the background. Photo taken with an iphone --ar 4:5 --v 7

Ingredients

  • 1 standard chocolate cake mix
  • 3 large eggs
  • Water (or brewed coffee for richer flavor, quantity as per cake mix instructions)
  • 1 package instant chocolate pudding mix
  • 6–8 Reese’s Peanut Butter Cups, chopped
  • Creamy peanut butter (or crunchy for texture), about 1 cup divided
  • Powdered sugar, about 1 to 1 ½ cups (divided)
  • Milk, 2-3 tablespoons (optional, for frosting consistency)

Instructions

  1. Step 1: Preheat your oven to 350°F (175°C). Grease a 9×13-inch baking dish to prepare for the cake batter.
  2. Step 2: In a large mixing bowl, combine the chocolate cake mix, eggs, and water. Stir until just combined, being careful not to overmix to keep the cake light and fluffy.
  3. Step 3: Fold in the instant chocolate pudding mix until it is evenly distributed through the batter.
  4. Step 4: Chop 6 to 8 Reese’s Peanut Butter Cups and gently fold them into the batter, ensuring even distribution.
  5. Step 5: Pour the batter into the prepared baking dish, spreading it out evenly.
  6. Step 6: In a separate bowl, mix creamy peanut butter with powdered sugar until smooth. If it’s too thick, add a couple of tablespoons of milk to reach a drizzleable consistency. Drizzle this peanut butter mixture over the cake batter in a zigzag pattern.
  7. Step 7: Bake the cake for 30-35 minutes, or until a toothpick inserted in the center comes out mostly clean (a few moist crumbs are okay).
  8. Step 8: Remove the cake from the oven and let it cool in the pan for about 15 minutes.
  9. Step 9: While cooling, prepare the frosting by mixing more peanut butter with powdered sugar and a little milk until it reaches a spreadable consistency. Once the cake is cool, spread this frosting evenly on top.
  10. Step 10: Sprinkle additional chopped Reese’s Peanut Butter Cups over the frosted cake for an extra indulgent touch.

Tips & Variations

  • Don’t overmix the batter to keep the cake light and fluffy.
  • Try adding a teaspoon of vanilla extract to the batter for extra flavor.
  • Serve warm with a scoop of vanilla ice cream for a delightful contrast.
  • Drizzle melted chocolate or caramel sauce over the top for a stunning presentation.
  • For a vegan version, substitute eggs with flax eggs (1 tablespoon ground flaxseed mixed with 2.5 tablespoons water per egg).
  • Use crunchy peanut butter instead of creamy for added texture.

Storage

Store the cake in an airtight container at room temperature if you plan to eat it within 2 days. For longer storage, refrigerate the cake where it will keep for up to one week. You can also freeze individual slices by wrapping them tightly in plastic wrap followed by aluminum foil; frozen cake lasts up to three months. Thaw frozen slices overnight in the fridge before serving. Reheat gently if desired.

How to Serve

The image shows a square piece of dessert with three visible layers on a white plate with a scoop of vanilla ice cream on the side. The bottom layer is dark chocolate with a dense and moist texture mixed with chocolate chips. The middle layer is a thick peanut butter filling studded with chocolate chips. The top layer is a glossy chocolate ganache topped with whole mini peanut butter cups and scattered chocolate chips. The dessert sits on a white marbled surface with a blurred background. Photo taken with an iphone --ar 4:5 --v 7

Serve this delicious recipe with your favorite sides.

FAQs

Can I use homemade chocolate cake instead of a mix?

Yes, a homemade chocolate cake recipe works perfectly in place of the cake mix and allows you to customize the flavor further.

What causes the “earthquake” effect in this cake?

The swirling of peanut butter and cake batter during baking causes the layers to intermingle, creating a gooey, layered texture reminiscent of an “earthquake” in the cake.

Print
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Indulgent Reese’s Chocolate Peanut Butter Cup Earthquake Cake Recipe


  • Author: Ella
  • Total Time: 45-50 minutes
  • Yield: 12 servings 1x

Description

The Indulgent Reese’s Chocolate Peanut Butter Cup Earthquake Cake is a rich, decadent dessert that combines the luscious flavors of chocolate and creamy peanut butter with the iconic Reese’s Peanut Butter Cups. This cake features a fudgy, gooey center created by swirling peanut butter and powdered sugar over the batter, producing an irresistible “earthquake” effect when baked. Perfect as a show-stopping dessert for gatherings or cozy nights, it offers a perfect balance of chocolate and nutty sweetness in every bite.


Ingredients

Scale

Cake Batter

  • 1 standard chocolate cake mix
  • 3 large eggs
  • 1 cup water (or brewed coffee for richer flavor)
  • 1 package instant chocolate pudding mix
  • 68 Reese’s Peanut Butter Cups, chopped

Peanut Butter Swirl & Frosting

  • 1 cup creamy peanut butter (or crunchy for texture)
  • 1 to 1 ½ cups powdered sugar
  • 23 tablespoons milk (optional, for consistency)
  • Additional chopped Reese’s Peanut Butter Cups for topping

Instructions

  1. Preheat the Oven: Preheat your oven to 350°F (175°C). Grease a 9×13-inch baking dish to ensure the cake releases easily after baking.
  2. Mix the Cake Batter: In a large mixing bowl, combine the chocolate cake mix, three large eggs, and water (or brewed coffee). Stir gently until just combined, being careful not to overmix to keep the cake light and fluffy.
  3. Add Pudding Mix: Fold in the instant chocolate pudding mix carefully until the batter is evenly incorporated, which adds extra moisture and richness.
  4. Fold in Peanut Butter Cups: Chop 6 to 8 Reese’s Peanut Butter Cups and gently fold them into the batter, distributing them evenly throughout.
  5. Pour Batter Into Pan: Transfer the batter into the prepared 9×13-inch baking dish, spreading it out evenly for uniform baking.
  6. Create the Earthquake Effect: In a separate bowl, combine the creamy peanut butter with powdered sugar until smooth. Add a couple of tablespoons of milk if the mixture is too thick. Drizzle this peanut butter mixture over the cake batter in a zigzag pattern to create the signature swirled effect.
  7. Bake: Place the cake in the oven and bake for 30-35 minutes, or until a toothpick inserted into the center comes out mostly clean with a few moist crumbs remaining.
  8. Cool and Frost: Let the cake cool in the pan for about 15 minutes. Meanwhile, prepare the frosting by mixing additional peanut butter with powdered sugar and milk until spreadable. Once the cake is cool enough, frost the top evenly.
  9. Top with More Peanut Butter Cups: Sprinkle extra chopped Reese’s Peanut Butter Cups on top of the frosted cake for added indulgence and visual appeal.

Notes

  • Be careful not to overmix the cake batter to maintain a light and fluffy texture.
  • For an extra flavor boost, add a teaspoon of vanilla extract to the batter.
  • Serve warm with a scoop of vanilla ice cream for a delightful contrast.
  • Consider drizzling melted chocolate or caramel sauce on top for an elegant finish.
  • Store leftovers in an airtight container at room temperature for up to 2 days, refrigerate for up to a week, or freeze individual slices for up to 3 months.
  • Prep Time: 15 minutes
  • Cook Time: 30-35 minutes
  • Category: Dessert
  • Method: Baking
  • Cuisine: American

Keywords: Reese’s peanut butter cups, chocolate cake, peanut butter swirl, indulgent dessert, earthquake cake, rich chocolate, creamy peanut butter, showstopper dessert, easy chocolate cake, peanut butter frosting

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