Get ready to shake up your dessert routine with the most decadent and delicious treat you’ll bake all year. This Reese’s Peanut Butter Earthquake Cake is a chocolate and peanut butter lover’s dream, featuring a rich chocolate cake base that cracks and fissures during baking to reveal a molten river of creamy, sweet peanut butter cheesecake filling. Topped with chopped Reese’s Peanut Butter Cups and a chocolate drizzle, this cake is an explosion of flavor and texture that’s surprisingly simple to make.
If you’re searching for a show-stopping dessert that requires minimal effort but delivers maximum impact, you’ve found it. This recipe is perfect for potlucks, family gatherings, or any occasion that calls for a truly unforgettable sweet treat.
What is an Earthquake Cake?
An earthquake cake gets its name from its delightfully messy, cracked appearance. It starts with a simple cake batter, often from a mix, but the magic happens with the filling. A mixture of cream cheese, butter, and powdered sugar is dropped over the batter.
As the cake bakes, the dense filling sinks and pushes the lighter cake batter up and around it, creating deep crevices and molten tunnels. The result is a wonderfully chaotic top that looks like the ground after an earthquake, with a rich, gooey surprise in every single bite.
Why You’ll Love This Reese’s Peanut Butter Earthquake Cake Recipe
- Incredibly Easy: This recipe starts with a box of chocolate cake mix, which saves time and guarantees a moist, perfect crumb every time.
- Rich and Decadent: The combination of dark chocolate cake, creamy peanut butter cheesecake filling, and melted Reese’s cups is pure indulgence.
- Perfectly Textured: You get a moist cake, a creamy filling, crunchy pecans, and a smooth chocolate glaze all in one bite. It’s a textural masterpiece!
- A True Showstopper: It looks impressive and tastes even better, making it the perfect centerpiece for any dessert table. Everyone will ask for the recipe!
Ingredients You’ll Need
This recipe uses simple, easy-to-find ingredients to create a truly spectacular cake. Here’s what you’ll need:
For the Cake Base
- Chocolate Fudge Cake Mix: One standard box is the perfect shortcut to a rich, moist chocolate cake.
- Vegetable Oil: Ensures the cake is tender and moist.
- Water: The primary liquid for the cake batter.
- Eggs: Provides structure and richness.
- Shredded Coconut & Chopped Pecans: These form a delicious, crunchy layer at the bottom of the cake.
For the Peanut Butter Filling
- Cream Cheese: Use full-fat, block-style cream cheese, softened to room temperature for a smooth, lump-free filling.
- Creamy Peanut Butter: The star of the show! Standard creamy peanut butter works best.
- Butter: Use unsalted butter, softened to room temperature.
- Powdered Sugar: Sweetens the filling and gives it a smooth consistency.
For the Toppings
- Reese’s Peanut Butter Cups: Chopped and sprinkled over the top before and after baking for that classic peanut butter punch.
- Chocolate Syrup: A final drizzle for extra chocolatey goodness.
Step-by-Step Instructions
Follow these simple steps to create your own Reese’s Peanut Butter Earthquake Cake.
- Preheat and Prep: First, preheat your oven to 350°F (175°C). Grease and flour a 9×13 inch baking pan.
- Create the Base Layer: Sprinkle the shredded coconut and chopped pecans evenly across the bottom of the prepared pan.
- Mix the Cake Batter: In a large bowl, combine the chocolate cake mix, water, vegetable oil, and eggs. Beat with an electric mixer on medium speed for about two minutes, until the batter is smooth. Pour the batter evenly over the coconut and pecan layer.
- Prepare the Filling: In a separate medium bowl, beat the softened cream cheese, peanut butter, and softened butter together until smooth and creamy. Gradually beat in the powdered sugar until the mixture is well combined.
- Assemble the Cake: Drop spoonfuls of the peanut butter filling randomly over the top of the chocolate cake batter. Sprinkle half of the chopped Reese’s Peanut Butter Cups over the filling.
- Bake to Perfection: Bake for 45-55 minutes, or until a wooden skewer inserted into the cake part comes out clean. The center should be mostly set but still slightly gooey.
- Cool and Garnish: Let the cake cool in the pan on a wire rack. Once cooled, sprinkle the remaining chopped Reese’s cups over the top and drizzle generously with chocolate syrup.
Pro Tips for the Perfect “Earthquake” Effect
- Don’t Swirl: Resist the urge to swirl the filling into the batter! Dropping it in spoonfuls is key to creating the distinct cracks and tunnels as it bakes.
- Room Temperature Ingredients: For the smoothest, creamiest filling, make sure your cream cheese and butter are fully softened to room temperature.
- Don’t Overbake: The key to a great earthquake cake is the gooey center. Keep an eye on it and pull it from the oven when the cake portions are cooked but the filling is still soft.
For another incredibly decadent and crowd-pleasing dessert, check out this amazing Heaven on Earth Cake recipe.
Delicious Variations to Try
While the Reese’s version is a classic, you can easily customize this cake. Try swapping the pecans for walnuts or almonds. For an even deeper chocolate flavor, add a handful of chocolate chips to the batter. If you love contrasting flavors, our Triple Chocolate Mousse Cake is another must-try.
How to Store Your Earthquake Cake
Because of the cream cheese filling, this cake should be stored in the refrigerator. Cover the pan with plastic wrap or transfer slices to an airtight container. It will stay fresh and delicious for up to 4-5 days. You can serve it chilled or let it sit at room temperature for about 20 minutes before serving. For a quick and easy no-bake treat, you might also love these Frozen Banana Snickers.
Frequently Asked Questions
Absolutely! This cake is a great make-ahead dessert. You can bake it a day or two in advance and store it, covered, in the refrigerator. The flavors often meld and become even richer overnight.
Yes, any standard-sized chocolate cake mix will work. Devil’s food, dark chocolate fudge, or German chocolate cake mix are all excellent choices for this recipe.
Due to the cream cheese filling, leftovers must be stored in the refrigerator. Cover the cake pan with plastic wrap or transfer slices to an airtight container. It will keep for up to 5 days.
If you’re not a fan of pecans or have a nut allergy, you can simply omit them. The cake will still be delicious! Walnuts or almonds would also be a great substitute if you still want that crunchy texture.
It’s called an earthquake cake because as it bakes, the dense cream cheese filling sinks and pushes the cake batter up, creating deep cracks and crevices on the surface that resemble the ground after an earthquake.
The Only Chocolate Peanut Butter Cake You’ll Ever Need
This Reese’s Peanut Butter Earthquake Cake is more than just a dessert; it’s an experience. Every bite is a perfect symphony of rich chocolate, creamy peanut butter, and satisfying crunch. It’s the kind of recipe that becomes a family favorite after just one bake. Give it a try, and don’t forget to share your masterpiece on Pinterest!
Reese’s Peanut Butter Earthquake Cake Recipe
Reese's Peanut Butter Earthquake Cake: The Ultimate Indulgent Dessert
Equipment
- 1 9x13-inch baking pan
- 1 Electric mixer
- 2 Mixing Bowls
Ingredients
For the Cake
- 1 cup shredded sweetened coconut
- 1 cup chopped pecans
- 1 box chocolate fudge cake mix approx. 15.25 oz
- 3 large eggs
- 1 cup water
- 0.5 cup vegetable oil
For the Peanut Butter Filling
- 8 oz cream cheese softened
- 1 cup creamy peanut butter
- 0.5 cup unsalted butter softened
- 2 cups powdered sugar
For the Topping
- 10 Reese's Peanut Butter Cups chopped, divided
- 0.25 cup chocolate syrup for drizzling
Instructions
- Preheat oven to 350°F (175°C). Grease and flour a 9x13 inch baking pan.
- Sprinkle the shredded coconut and chopped pecans in an even layer on the bottom of the prepared pan.
- In a large bowl, combine the cake mix, eggs, water, and vegetable oil. Beat with an electric mixer on medium speed for 2 minutes until smooth. Pour the batter evenly over the coconut and pecans.
- In a separate bowl, beat the softened cream cheese, peanut butter, and softened butter until light and fluffy. Gradually mix in the powdered sugar until smooth.
- Drop spoonfuls of the peanut butter cream cheese mixture randomly over the cake batter. Sprinkle with half of the chopped Reese's Peanut Butter Cups.
- Bake for 45-55 minutes, or until a toothpick inserted into the cake portion comes out clean. The filling will still be soft.
- Let the cake cool completely on a wire rack. Once cooled, sprinkle with the remaining chopped Reese's cups and drizzle with chocolate syrup before serving.
Notes
Do not swirl the filling into the batter; dropping it by the spoonful is what creates the signature 'earthquake' cracks.
Store any leftovers in an airtight container in the refrigerator for up to 5 days.
