Reese’s Peanut Butter Earthquake Cake
If you’re looking for a dessert that’s both indulgent and a little bit fun, let me introduce you to my absolute favorite: Reese’s Peanut Butter Earthquake Cake. This cake is a delightful blend of rich chocolate and creamy peanut butter, with a gooey center that will make your taste buds dance! It’s perfect for any occasion, whether it’s a busy weeknight treat or the star of your next family gathering. Trust me, once you try it, you’ll understand why this recipe has earned a special spot in my heart.
Every bite of this cake is packed with flavor, and the addition of Reese’s cups on top makes it even more irresistible. Plus, it’s super easy to whip up—your loved ones will think you spent hours in the kitchen!
Why You’ll Love This Recipe
- Quick to make: With just 20 minutes of prep time, you can have this delicious cake in the oven before you know it!
- Family-friendly: Kids and adults alike will enjoy the combination of chocolate and peanut butter. It’s a guaranteed crowd-pleaser!
- Gooey goodness: The decadent layered center adds an exciting twist to every slice.
- Versatile dessert: Perfect for birthday parties, potlucks, or just a cozy night in.
- Make-ahead option: You can bake it ahead of time and serve it warm or at room temperature—no stress involved!

Ingredients You’ll Need
To create this scrumptious Reese’s Peanut Butter Earthquake Cake, you only need simple and wholesome ingredients that are likely already in your pantry. Let’s gather everything we need!
For the Cake
- 1 box chocolate cake mix
- 1 cup water
- 1/2 cup vegetable oil
- 3 large eggs
For the Peanut Butter Swirl
- 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
This recipe is wonderfully flexible! Feel free to get creative with your ingredients or toppings.
- Add nuts: Toss in some chopped peanuts or walnuts for an added crunch.
- Try different candies: Swap out Reese’s cups for your favorite candy bars or chocolate chips.
- Make it gluten-free: Use a gluten-free chocolate cake mix to cater to dietary preferences.
- Experiment with flavors: Add a pinch of sea salt on top before baking for a sweet-salty twist.
How to Make Reese’s Peanut Butter Earthquake Cake
Step 1: Preheat Your Oven
First things first! Preheat your oven to 350°F (175°C) and grease a 9×13-inch baking dish. This ensures that your cake won’t stick and will come out perfectly golden brown.
Step 2: Mix the Cake Batter
In a large mixing bowl, combine the chocolate cake mix, water, vegetable oil, and eggs. Mix until everything is well combined. Pour this luscious batter into your prepared baking dish. This chocolate base is going to be absolutely divine!
Step 3: Prepare 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 and creamy. This step adds that rich swirl that makes this cake so special.
Step 4: Swirl It In
Now comes the fun part! Drop spoonfuls of the peanut butter mixture over the top of the cake batter. Using a knife or spatula, gently swirl it into the batter. Don’t worry about perfection—those beautiful swirls are what create that ‘earthquake’ effect!
Step 5: Add Toppings
Sprinkle those delightful chopped Reese’s Peanut Butter Cups evenly over the top of your cake mixture. This adds extra sweetness and texture for every bite.
Step 6: Bake Your Cake
Pop the baking dish into your preheated oven and let it bake for about 35-40 minutes. Keep an eye on it; when a toothpick inserted into the center comes out mostly clean (a few crumbs are okay!), it’s ready to come out.
Step 7: Cool and Enjoy!
Let your masterpiece cool slightly before cutting into squares. You can serve it warm or at room temperature—either way will ensure smiles all around! Enjoy this gooey delight with friends or family; it’s bound to become their favorite too!
Pro Tips for Making Reese’s Peanut Butter Earthquake Cake
Baking this indulgent cake is a joy, and with a few simple tips, you can make it even more delightful!
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Use Room Temperature Ingredients: Starting with room temperature eggs and cream cheese helps create a smoother batter. This ensures that your peanut butter mixture blends seamlessly into the cake, resulting in a beautiful marbled effect.
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Don’t Overmix the Batter: Mixing the cake batter just until combined prevents it from becoming tough. A light hand keeps the cake fluffy and tender, which is exactly what you want in a dessert.
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Swirl Gently: When incorporating the peanut butter mixture into the cake batter, use gentle swirling motions. This creates that signature “earthquake” look without completely blending the layers together, allowing for gooey pockets of peanut butter throughout.
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Check for Doneness Carefully: Since every oven varies, start checking your cake a few minutes before the suggested baking time. A toothpick should come out with a few moist crumbs but not wet batter; this ensures your cake remains rich and moist.
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Let It Cool Slightly Before Serving: Allowing the cake to cool for about 10-15 minutes after baking enhances its texture and flavor. It makes slicing easier and lets those delicious flavors settle in.
How to Serve Reese’s Peanut Butter Earthquake Cake
This Reese’s Peanut Butter Earthquake Cake is not only delicious but also visually stunning. With some creative presentation ideas, you can elevate this dessert to a show-stopping centerpiece at any gathering!
Garnishes
- Whipped Coconut Cream: A dollop of whipped coconut cream adds a light and airy contrast to the rich flavors of the cake.
- Chocolate Drizzle: A simple drizzle of melted dairy-free chocolate enhances the chocolatey goodness and makes it look extra special.
- Chopped Peanuts: Sprinkling some chopped peanuts on top not only adds crunch but also complements the peanut butter flavor beautifully.
Side Dishes
- Vanilla Almond Milkshake: The creamy texture of a vanilla almond milkshake pairs perfectly with the dense cake, creating a delightful balance.
- Fresh Berries: A side of fresh strawberries or raspberries offers a tart contrast that cuts through the richness of the cake.
- Coconut Sorbet: The refreshing taste of coconut sorbet brings a tropical twist that complements the chocolate and peanut butter beautifully.
- Coffee: A warm cup of coffee or mocha provides an excellent pairing, enhancing all those sweet flavors while adding a cozy vibe to your dessert experience.
Now that you have these serving tips in mind, get ready to impress your friends and family with this decadent treat! Enjoy every bite!

Make Ahead and Storage
This Reese’s Peanut Butter Earthquake Cake is perfect for meal prep or special occasions, allowing you to enjoy its rich flavors without the last-minute rush. You can easily make it ahead of time and store it for later enjoyment.
Storing Leftovers
- Store any leftover cake in an airtight container at room temperature for up to 3 days.
- For longer freshness, refrigerate the cake where it can last up to a week.
- Always cover slices with plastic wrap or foil to keep them moist.
Freezing
- To freeze, wrap individual slices tightly in plastic wrap followed by aluminum foil.
- The cake can be frozen for up to 3 months.
- Ensure you label the packages with the date for your convenience!
Reheating
- To reheat, simply remove a slice from the freezer and let it thaw in the refrigerator overnight.
- For a warm treat, microwave for about 15-20 seconds or until heated through.
- Enjoy with a scoop of ice cream or whipped topping if desired!
FAQs
If you have questions about this delightful dessert, you’re in the right place!
What is Reese’s Peanut Butter Earthquake Cake?
Reese’s Peanut Butter Earthquake Cake is a decadent chocolate and peanut butter dessert featuring a gooey center filled with cream cheese and topped with chopped Reese’s cups. It’s an indulgent treat that combines rich flavors and textures.
Can I make Reese’s Peanut Butter Earthquake Cake in advance?
Absolutely! This cake is great for making ahead of time. You can prepare it a day or two in advance and store it properly to maintain its deliciousness.
What should I serve with Reese’s Peanut Butter Earthquake Cake?
Consider serving this cake warm with vanilla ice cream or whipped cream on top. Fresh berries also complement the rich flavors beautifully!
Can I substitute any ingredients in the recipe?
Yes, you can use gluten-free chocolate cake mix if needed. For a dairy-free version, consider using plant-based cream cheese and butter alternatives.
Final Thoughts
I hope you’re as excited to try this Reese’s Peanut Butter Earthquake Cake as I am! It truly brings together the best of chocolate and peanut butter in one heavenly bite. Whether it’s for a family gathering or just a treat for yourself, I’m sure you’ll love making (and savoring) this delightful dessert. Enjoy every moment of baking and sharing this indulgent cake!
Reese’s Peanut Butter Earthquake Cake
Indulge in the rich and creamy delight of Reese’s Peanut Butter Earthquake Cake, a dessert that beautifully marries the flavors of chocolate and peanut butter. This decadent treat features a gooey center that provides a delightful surprise with each bite. Perfect for any occasion—from family get-togethers to cozy nights in—this cake is not only easy to make but also sure to impress your loved ones. With its irresistible combination of textures and flavors, it’s destined to become a favorite in your dessert repertoire. Get ready for a deliciously fun baking experience!
- Prep Time: 20 minutes
- Cook Time: 40 minutes
- Total Time: 1 hour
- Yield: Serves approximately 12 slices 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) and grease a 9×13-inch baking dish.
- In a large bowl, mix together the chocolate cake mix, water, vegetable oil, and eggs until well blended. Pour into the prepared 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 cake batter and gently swirl with a knife.
- Sprinkle chopped Reese’s Peanut Butter Cups on top.
- Bake for 35-40 minutes or until a toothpick comes out mostly clean.
- Cool slightly before serving.
Nutrition
- Serving Size: 1 slice (100g)
- Calories: 420
- Sugar: 38g
- Sodium: 320mg
- Fat: 22g
- Saturated Fat: 10g
- Unsaturated Fat: 10g
- Trans Fat: 0g
- Carbohydrates: 51g
- Fiber: 2g
- Protein: 6g
- Cholesterol: 50mg