Reese’s Peanut Butter Earthquake Cake
If you’re looking for a dessert that will steal the show at your next gathering, look no further! This Reese’s Peanut Butter Earthquake Cake is an indulgent treat that combines rich chocolate with creamy peanut butter in a way that feels like a warm hug. It’s my go-to recipe for parties, family dinners, or just those cozy nights when you want to spoil yourself a little. Trust me; it’s hard to resist those gooey layers and the delightful crunch of Reese’s cups sprinkled on top!
This cake is not only delicious but also so easy to whip up. Whether you’re baking for a special occasion or just because, this dessert fits right in. Plus, it’s perfect for sharing (or not—no judgment here!). Let’s dive into why you’ll absolutely love making this sweet delight.
Why You’ll Love This Recipe
- Quick and Easy: With just a few simple steps, you can have this cake ready in about an hour. Perfect for busy weeknights!
- Family-Friendly: Kids and adults alike will love the combination of chocolate and peanut butter—it’s an instant hit!
- Decadent Flavor: The rich flavors of creamy peanut butter and chocolate make every bite feel like a special treat.
- Make-Ahead Friendly: Bake it ahead of time and store it for later—this cake stays moist and delicious!
- Versatile Topping Options: While Reese’s cups are amazing, you can easily customize the toppings to suit your taste!

Ingredients You’ll Need
Creating this decadent dessert doesn’t require any fancy ingredients—just some simple, wholesome staples you probably already have at home! Here’s what you’ll need to bring your Reese’s Peanut Butter Earthquake Cake to life:
For the Cake
- 1 box chocolate cake mix
- 1 cup water
- 1/2 cup vegetable oil
- 3 large eggs
For the Peanut Butter Filling
- 1 cup creamy peanut butter
- 8 oz cream cheese, softened
- 1/2 cup unsalted butter, melted
- 4 cups powdered sugar
- 1 tsp vanilla extract
For Topping
- 1 cup Reese’s Peanut Butter Cups, chopped
Variations
One of the best things about this recipe is its flexibility! Feel free to mix things up based on what you have on hand or your personal preferences. Here are some fun ideas:
- Add nuts: Toss in some chopped peanuts or walnuts for an extra crunch!
- Change the chocolate: Use dark chocolate cake mix for a richer flavor.
- Try different candies: Swap out the Reese’s cups for your favorite candy bars—chocolate caramel anyone?
- Make it gluten-free: Use a gluten-free chocolate cake mix to accommodate dietary needs.
How to Make Reese’s Peanut Butter Earthquake Cake
Step 1: Preheat Your Oven
Begin by preheating your oven to 350°F (175°C). This ensures that your cake bakes evenly and rises beautifully.
Step 2: Prepare the Cake Batter
In a large bowl, mix together the chocolate cake mix, water, vegetable oil, and eggs until everything is well combined. This batter will be the base of our delicious earthquake cake. Pour it into a greased 9×13-inch baking dish.
Step 3: Create the Peanut Butter Mixture
In another bowl, combine the creamy peanut butter, softened cream cheese, melted butter, powdered sugar, and vanilla extract. Mix until smooth. This luscious mixture creates that gooey center we all crave!
Step 4: Swirl It Together
Drop spoonfuls of the peanut butter mixture over your chocolate batter. Using a knife, gently swirl it into the batter. Don’t worry about perfection; those swirls add character and deliciousness!
Step 5: Add Toppings
Sprinkle chopped Reese’s Peanut Butter Cups evenly over the top of your cake. These little bites of heaven will melt slightly while baking and create an irresistible topping.
Step 6: Bake to Perfection
Bake in your preheated oven for about 35-40 minutes or until a toothpick inserted into the center comes out mostly clean. The edges should look set while leaving that gooey center intact.
Step 7: Cool & Enjoy!
Allow your cake to cool slightly before serving—it makes cutting easier! Enjoy it warm or let it reach room temperature; either way, it’s going to be amazing!
This recipe is sure to become one of your favorites—happy baking!
Pro Tips for Making Reese’s Peanut Butter Earthquake Cake
Baking can be a delightful adventure, and with these pro tips, you’ll create a show-stopping dessert that everyone will love!
- Use room temperature ingredients: Bringing your eggs and cream cheese to room temperature allows for better mixing and a smoother batter, resulting in a fluffier cake.
- Don’t overmix the batter: Mixing just until combined helps maintain the cake’s light texture. Overmixing can lead to a denser cake.
- Swirl gently: When incorporating the peanut butter mixture into the chocolate batter, use a gentle hand. A light swirl creates those beautiful layers without fully blending them.
- Check doneness carefully: Ovens can vary, so start checking your cake a few minutes before the suggested baking time to avoid overbaking and drying it out. Aim for mostly clean toothpick results.
- Store properly: To keep your cake fresh, store leftovers in an airtight container at room temperature for up to 3 days. You can also refrigerate it to extend its life!
How to Serve Reese’s Peanut Butter Earthquake Cake
This indulgent treat deserves to shine on your dessert table! Here are some fun ways to serve it up.
Garnishes
- Whipped coconut cream: A fluffy topping made from chilled coconut milk adds a light, tropical flair that complements the rich flavors.
- Chocolate drizzle: A simple melted chocolate sauce drizzled over the top enhances the visual appeal and adds an extra layer of decadence.
Side Dishes
- Vanilla ice cream: A scoop of creamy vanilla ice cream provides a delightful contrast to the warm cake, creating an irresistible combination.
- Fresh berries: Juicy strawberries or raspberries add a refreshing tartness that balances out the sweetness of the cake beautifully.
- Caramel sauce: Drizzling warm caramel sauce over each slice offers an extra touch of sweetness and richness that’s simply divine.
Now you’re all set to impress friends and family with this scrumptious Reese’s Peanut Butter Earthquake Cake! Enjoy every bite!

Make Ahead and Storage
This Reese’s Peanut Butter Earthquake Cake is not only a delightful treat but also a fantastic option for meal prep! You can make it ahead of time and enjoy its rich flavors throughout the week. Here’s how to store and reheat your cake:
Storing Leftovers
- Allow the cake to cool completely before storing.
- Cover it tightly with plastic wrap or aluminum foil.
- Store in the refrigerator for up to 5 days.
Freezing
- Cut the cake into individual portions for easy thawing.
- Wrap each piece tightly in plastic wrap, then place in an airtight container or freezer bag.
- Freeze for up to 3 months. To enjoy later, simply thaw in the refrigerator overnight.
Reheating
- For individual slices, microwave on high for 15-20 seconds until warmed through.
- If reheating the whole cake, cover it with foil to prevent drying out, and warm in a preheated oven at 350°F (175°C) for about 10-15 minutes.
FAQs
Here are some common questions about making this delicious dessert!
Can I make Reese’s Peanut Butter Earthquake Cake without eggs?
Yes! You can substitute eggs with a flaxseed mixture (1 tbsp ground flaxseed + 3 tbsp water per egg) or unsweetened applesauce (1/4 cup per egg) to maintain moisture and texture.
How do I know when my Reese’s Peanut Butter Earthquake Cake is done baking?
The cake is done when a toothpick inserted into the center comes out mostly clean, with just a few moist crumbs. Keep an eye on it after about 35 minutes of baking.
What can I use instead of cream cheese in this recipe?
If you prefer a dairy-free option, try using vegan cream cheese as a substitute. It will work similarly and still deliver that creamy texture.
Can I add other toppings to my Reese’s Peanut Butter Earthquake Cake?
Absolutely! Feel free to top your cake with chopped nuts, drizzles of chocolate syrup, or even whipped coconut cream for extra flair!
Final Thoughts
I hope you’re as excited as I am about making this Reese’s Peanut Butter Earthquake Cake! It’s truly special with its gooey layers and rich peanut butter flavor. Whether it’s for a gathering or just because, this cake is sure to delight everyone who takes a bite. Enjoy baking it, and don’t hesitate to share your experience or any twists you try along the way!
Reese’s Peanut Butter Earthquake Cake
Reese’s Peanut Butter Earthquake Cake is the ultimate dessert that combines rich chocolate and creamy peanut butter for a truly indulgent experience. With its gooey center and delightful crunch from chopped Reese’s cups, this cake is sure to impress at any gathering. Perfect for family dinners or cozy nights in, it’s a crowd-pleaser that’s easy to whip up in about an hour. Whether you enjoy it warm or at room temperature, each bite feels like a warm hug of flavor, making it an irresistible treat for both kids and adults alike.
- Prep Time: 15 minutes
- Cook Time: 35 minutes
- Total Time: 50 minutes
- Yield: Serves approximately 12 1x
- Category: Dessert
- Method: Baking
- Cuisine: American
Ingredients
- 1 box chocolate cake mix
- 1 cup water
- 1/2 cup vegetable oil
- 3 large eggs
- 1 cup creamy peanut butter
- 8 oz cream cheese, softened
- 1/2 cup unsalted butter, melted
- 4 cups powdered sugar
- 1 tsp vanilla extract
- 1 cup chopped Reese’s Peanut Butter Cups
Instructions
- Preheat your oven to 350°F (175°C).
- In a large bowl, mix the chocolate cake mix, water, vegetable oil, and eggs until well combined. Pour into a greased 9×13-inch baking dish.
- In another bowl, combine peanut butter, cream cheese, melted butter, powdered sugar, and vanilla extract until smooth.
- Drop spoonfuls of the peanut butter mixture over the chocolate batter and swirl gently with a knife.
- Sprinkle chopped Reese’s cups on top.
- Bake for 35-40 minutes or until a toothpick inserted comes out mostly clean.
- Allow to cool slightly before serving.
Nutrition
- Serving Size: 1 piece (92g)
- Calories: 320
- Sugar: 28g
- Sodium: 210mg
- Fat: 17g
- Saturated Fat: 7g
- Unsaturated Fat: 9g
- Trans Fat: 0g
- Carbohydrates: 36g
- Fiber: 1g
- Protein: 5g
- Cholesterol: 30mg