Reese’s Peanut Butter Earthquake Cake Recipe
Introduction
Reese’s Peanut Butter Earthquake Cake is a decadent dessert that combines rich chocolate cake with creamy peanut butter and crunchy Reese’s peanut butter cups. This no-fuss recipe delivers layers of flavor and texture that peanut butter lovers will adore. Perfect for parties or a special treat at home.

Ingredients
- 1 box chocolate cake mix
- Ingredients required for cake mix (usually eggs, oil, and water)
- 1 jar (16 oz) creamy peanut butter
- 2 cups powdered sugar
- 1 cup crushed Reese’s peanut butter cups
- 1 cup mini Reese’s peanut butter cups, chopped
- 1 tub (8 oz) whipped topping (like Cool Whip)
- 1 cup semi-sweet chocolate chips
- 2 tablespoons butter
- 1/4 cup heavy cream
Instructions
- Step 1: Preheat the oven to the temperature specified on the cake mix box.
- Step 2: Prepare the chocolate cake mix according to the package directions and pour the batter into a greased baking dish.
- Step 3: In a separate bowl, mix the creamy peanut butter and powdered sugar until smooth.
- Step 4: Drop spoonfuls of the peanut butter mixture evenly over the cake batter.
- Step 5: Sprinkle crushed and chopped Reese’s peanut butter cups on top of the batter and peanut butter drops.
- Step 6: Bake the cake following the time instructions on the cake mix box.
- Step 7: Once baked and slightly cooled, spread the whipped topping evenly over the cake surface.
- Step 8: Melt the semi-sweet chocolate chips, butter, and heavy cream together until smooth, then drizzle this chocolate ganache over the whipped topping.
- Step 9: Allow the cake to set before slicing and serving.
Tips & Variations
- Use crunchy peanut butter instead of creamy for added texture.
- Swap whipped topping for homemade whipped cream for a fresher taste.
- Add chopped nuts like peanuts or pecans for a crunchy contrast.
- For extra richness, fold a few mini peanut butter cups into the peanut butter mixture before spooning it over the batter.
Storage
Store the cake covered in the refrigerator for up to 3 days. To keep it fresh, place it in an airtight container. Reheat slices gently in the microwave for 10-15 seconds if desired, but it is equally delicious served cold.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I make this cake from scratch instead of using a cake mix?
Yes, you can use your favorite homemade chocolate cake recipe in place of the box mix. Just be sure to bake it in a similar-sized dish and adjust the baking time as needed.
Can I use peanut butter powder instead of creamy peanut butter?
Peanut butter powder won’t provide the same creamy texture needed for the peanut butter layer. It’s best to use creamy peanut butter for the right consistency and flavor.
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Reese’s Peanut Butter Earthquake Cake Recipe
- Total Time: 50 minutes
- Yield: 12 servings 1x
Description
Reese’s Peanut Butter Earthquake Cake is a decadent layered dessert combining a rich chocolate cake base with creamy peanut butter, crushed Reese’s peanut butter cups, and a luscious whipped topping. Finished with a smooth chocolate ganache drizzle, this indulgent cake offers a perfect balance of chocolate and peanut butter flavors in every bite.
Ingredients
Cake
- 1 box chocolate cake mix
- Ingredients required for cake mix (usually eggs, oil, and water as per package instructions)
Peanut Butter Mixture
- 1 jar (16 oz) creamy peanut butter
- 2 cups powdered sugar
Toppings
- 1 cup crushed Reese’s peanut butter cups
- 1 cup mini Reese’s peanut butter cups, chopped
- 1 tub (8 oz) whipped topping (e.g., Cool Whip)
Chocolate Ganache
- 1 cup semi-sweet chocolate chips
- 2 tablespoons butter
- 1/4 cup heavy cream
Instructions
- Preheat oven: Set your oven to the temperature specified on the chocolate cake mix box to ensure even baking.
- Prepare cake batter: Follow the package directions by mixing the cake mix with the required eggs, oil, and water. Pour the batter into a greased baking dish, spreading it out evenly.
- Make peanut butter mixture: In a separate bowl, combine the creamy peanut butter and powdered sugar until you achieve a smooth, spreadable consistency.
- Add peanut butter dollops: Drop spoonfuls of the peanut butter mixture over the surface of the chocolate cake batter, distributing them evenly to create pockets of flavor throughout the cake.
- Add Reese’s toppings: Sprinkle the crushed and chopped Reese’s peanut butter cups evenly on top of the cake batter and peanut butter dollops.
- Bake the cake: Bake according to the cake mix instructions, usually around 30-35 minutes, until a toothpick inserted in the center comes out clean.
- Cool and top with whipped topping: Allow the cake to cool slightly after removing it from the oven, then spread the whipped topping evenly across the cake surface.
- Prepare chocolate ganache: Melt the semi-sweet chocolate chips, butter, and heavy cream together over low heat or in a microwave in short intervals, stirring until smooth and glossy.
- Drizzle ganache: Drizzle the warm chocolate ganache over the whipped topping layer, creating an attractive and delicious finish.
- Set and serve: Let the cake set for a bit until the ganache firms up before slicing and serving to enjoy the perfect peanut butter and chocolate experience.
Notes
- For best results, use room temperature ingredients for the cake batter.
- Ensure the cake is slightly cooled before spreading the whipped topping to prevent it from melting.
- You can substitute mini Reese’s with any other peanut butter cups if unavailable.
- Store leftover cake covered in the refrigerator for up to 3 days.
- This cake is very rich, so small slices are recommended for serving.
- Prep Time: 15 minutes
- Cook Time: 35 minutes
- Category: Desserts
- Method: Baking
- Cuisine: American
Keywords: Reese’s, Peanut Butter Cake, Chocolate Cake, Dessert, No-Bake Topping, Whipped Topping, Ganache

