Peanut Butter Earthquake Cake


When it comes to indulgent desserts, few can compete with the exhilarating combination of chocolate and peanut butter. That’s why the Peanut Butter Earthquake Cake has become a favorite in my home. This decadent treat, filled with gooey peanut butter goodness and chocolatey textures, is a showstopper perfect for any occasion. Whether you’re celebrating a birthday, throwing a casual gathering, or simply craving something sweet, this earthquake cake is sure to impress your family and friends.
Why you’ll love this dish
There’s something truly special about combining a rich chocolate cake with a creamy peanut butter swirl. What makes this recipe stand out is its perfect blend of flavors and textures. The cake is not only easy to bake, but it’s also budget-friendly and sure to be a hit with kids and adults alike. Plus, why not enjoy a dessert that feels indulgent yet can be made with just a few pantry staples?
As one enthusiastic baker put it:
“This cake is pure bliss! The combination of chocolate and peanut butter is simply heavenly. It’s become a staple in my home for special gatherings!”
Step-by-step overview
Making a Peanut Butter Earthquake Cake is straightforward and enjoyable. You’ll start by preparing the chocolate cake base before layering on a fluffy peanut butter mixture. The final touch—chocolate chips and Reese’s peanut butter cups—adds crunchy decadence as it bakes to perfection.
What you’ll need
- Key ingredients
- 1 Box Chocolate Cake Mix (oil, eggs, water)
- 12 oz Softened cream cheese
- 1/2 Cup Softened butter
- 3/4 Cup Creamy peanut butter
- 1 teaspoon Vanilla extract
- 4 Cups Powdered sugar
- 1/2 Cup Chocolate chips
- 1 1/2 Cups Miniature Reese’s peanut butter cups, unwrapped and cut in halves
For those wanting to switch things up, you might consider using a sugar-free cake mix or opting for almond butter instead of peanut butter for a nut-free option.
Step-by-step instructions
- Preheat the oven to 350°F and grease a 9 x 13 baking dish with nonstick spray.
- Mix the cake batter: In a large bowl, combine the chocolate cake mix with the required oil, eggs, and water. Stir well until fully combined, then pour it into your greased baking dish and set aside.
- Prepare the peanut butter mixture: In another bowl, cream together the softened cream cheese, butter, peanut butter, and vanilla extract until smooth.
- Add the powdered sugar: Gradually mix in the powdered sugar, one cup at a time, until completely incorporated.
- Layer the mixtures: Spoon dollops of the peanut butter mixture over the chocolate cake batter and gently spread it around. Don’t worry about perfection; the "earthquake" effect will happen while baking.
- Top it off: Sprinkle the halves of Reese’s peanut butter cups and chocolate chips evenly across the batter.
- Bake for about 45-50 minutes, checking for doneness using a toothpick—when it comes out clean (or with just a few crumbs), it’s done!
- Serve warm with a generous scoop of vanilla ice cream alongside. ENJOY!
Best ways to enjoy it


The Peanut Butter Earthquake Cake is delightful on its own, but consider these serving suggestions to elevate your dessert:
- Pair it with a scoop of homemade vanilla ice cream for a creamy contrast.
- Add a drizzle of chocolate or caramel sauce for extra indulgence.
- Serve it alongside a warm cup of coffee or milk for a comforting treat.
Storage and reheating tips
To keep your Peanut Butter Earthquake Cake fresh:
- Room Temperature Storage: Cover the cake with plastic wrap and it will stay fresh for up to 3 days.
- Refrigeration: If you prefer it chilled or plan to keep it longer, place it in an airtight container and refrigerate for up to a week.
- Freezing: You can freeze slices for up to 2 months. Wrap each piece tightly in plastic wrap before placing them in a freezer bag. Just allow it to thaw overnight in the fridge when you’re ready to indulge again.
Helpful cooking tips
- Room Temperature Ingredients: For a smoother peanut butter filling, make sure your cream cheese and butter are at room temperature.
- Check for Doneness: Ovens can vary; keep an eye on your cake after the 45-minute mark to avoid overbaking.
- Garnish Creatively: If desired, top the cooled cake with whipped cream and crushed peanuts for added texture and flavor.
Creative twists
Feel free to experiment with this recipe! Here are a few variations you might enjoy:
- Add nuts: Chopped peanuts or walnuts can add a nice crunch to the mix.
- Different Cake Flavors: Try using a vanilla or red velvet cake mix for a fun flavor twist.
- Healthier Substitutions: Use Greek yogurt instead of cream cheese for a protein boost, or substitute agave nectar for powdered sugar to reduce sweetness.
Your questions answered
What’s the prep time for this cake?
Prep time is about 20 minutes, with a baking time of 45-50 minutes.
Can I make this cake in advance?
Absolutely! It can be made a day ahead. Just cover and store it in the fridge.
What if I don’t have chocolate cake mix?
You can use a vanilla cake mix for a unique flavor, though be sure to adjust the chocolate components accordingly.
With its stunning texture and glorious flavor combination, the Peanut Butter Earthquake Cake is bound to be a beloved addition to your dessert repertoire. Happy baking!


Peanut Butter Earthquake Cake
Ingredients
Method
- Preheat the oven to 350°F and grease a 9 x 13 baking dish with nonstick spray.
- Mix the cake batter: In a large bowl, combine the chocolate cake mix with the required oil, eggs, and water. Stir well until fully combined, then pour it into your greased baking dish and set aside.
- Prepare the peanut butter mixture: In another bowl, cream together the softened cream cheese, butter, peanut butter, and vanilla extract until smooth.
- Gradually mix in the powdered sugar, one cup at a time, until completely incorporated.
- Spoon dollops of the peanut butter mixture over the chocolate cake batter and gently spread it around.
- Sprinkle the halves of Reese’s peanut butter cups and chocolate chips evenly across the batter.
- Bake for about 45-50 minutes, checking for doneness using a toothpick—when it comes out clean (or with just a few crumbs), it’s done!
- Serve warm with a generous scoop of vanilla ice cream alongside. Enjoy!






