Reese’s Peanut Butter Earthquake Cake
If you’re looking for a dessert that brings smiles and satisfaction all around, then you’ve come to the right place! This Reese’s Peanut Butter Earthquake Cake is a true showstopper. It’s rich, decadent, and combines the beloved flavors of chocolate and peanut butter in a way that’s simply irresistible. Not only does it make an appearance at family gatherings and birthday celebrations, but it also shines on busy weeknights when you just want something sweet to brighten your day.
What makes this cake so special is its gooey, layered center that almost feels like a warm hug in every bite. Topped with chopped Reese’s cups, it’s a delightful treat that everyone will adore. Trust me, once you make this cake, it will quickly become a go-to recipe for any occasion!
Why You’ll Love This Recipe
- Easy to Make: With simple steps and minimal prep time, you’ll have this cake in the oven before you know it!
- Family-Friendly: Kids and adults alike will fall in love with this rich chocolate and peanut butter combo.
- Perfect for Any Occasion: Whether it’s a birthday party or just a cozy night in, this cake fits right in.
- Make-Ahead Option: Bake it ahead of time and enjoy it warm or at room temperature—it’s delicious either way!
- Gooey Goodness: The layered center creates that delightful earthquake effect that adds an extra layer of fun!

Ingredients You’ll Need
For this comforting dessert, you’ll need some simple and wholesome ingredients. Each one plays a vital role in creating the perfect balance of flavor and texture for our Reese’s Peanut Butter Earthquake Cake.
- 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 Reese’s Peanut Butter Cups, chopped
Variations
This recipe is incredibly flexible! If you’re feeling creative or want to switch things up, here are some fun variations to try:
- Add nuts: Chopped peanuts can add an extra crunch and flavor.
- Use different candy: Swap out Reese’s cups for your favorite chocolate candies if you’re feeling adventurous!
- Make it gluten-free: Use gluten-free chocolate cake mix for a friendly alternative.
- Try different nut butters: Almond or cashew butter can give the cake a unique twist while keeping that creamy goodness.
How to Make Reese’s Peanut Butter Earthquake Cake
Step 1: Preheat Your Oven
Preheat your oven to 350°F (175°C) and grease a 9×13-inch baking dish. This ensures your cake comes out easily after baking!
Step 2: Prepare the Chocolate Cake Batter
In a large bowl, mix together the chocolate cake mix, water, vegetable oil, and eggs until everything is well combined. Pour this delightful batter into your prepared baking dish. This layer serves as the base for your earthquake cake!
Step 3: Make the Peanut Butter Mixture
In another bowl, combine the creamy peanut butter, softened cream cheese, melted unsalted butter, powdered sugar, and vanilla extract. Mix until smooth. This mixture is where the magic happens—it creates that gooey center we all love!
Step 4: Swirl It Together
Drop spoonfuls of the peanut butter mixture over the top of the chocolate batter. Use a knife to swirl it gently into the batter. This step not only adds flavor but also creates beautiful patterns throughout the cake.
Step 5: Add the Toppings
Sprinkle chopped Reese’s Peanut Butter Cups evenly over the top of your batter. These will melt slightly during baking, adding even more deliciousness!
Step 6: Bake Your Cake
Bake for about 35–40 minutes or until a toothpick inserted into the center comes out mostly clean. Keep an eye on it; you want that gooey center without undercooking.
Step 7: Cool and Serve
Allow your cake to cool slightly before serving. It’s fantastic warm or at room temperature—either way, it’s sure to be a hit! Enjoy every heavenly bite!
Pro Tips for Making Reese’s Peanut Butter Earthquake Cake
Creating the perfect Reese’s Peanut Butter Earthquake Cake is a joyful experience, and with a few handy tips, you’ll be sure to impress everyone at your next gathering!
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Use room temperature ingredients: Ensuring that your cream cheese and eggs are at room temperature helps create a smoother batter and a more cohesive cake texture.
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Don’t overmix the batter: Mixing just until combined prevents the cake from becoming dense. A little bit of lumpiness is okay!
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Swirl gently: When swirling in the peanut butter mixture, use a light hand to maintain distinct marbling instead of fully blending it into the chocolate batter.
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Check for doneness: Since oven temperatures vary, start checking for doneness a few minutes before the recommended time. Look for a mostly clean toothpick to ensure it’s perfectly baked.
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Cool slightly before serving: Allowing the cake to cool for about 10 minutes before slicing gives it time to set and makes serving easier—plus, it’s delicious warm!
How to Serve Reese’s Peanut Butter Earthquake Cake
Presentation can make all the difference when serving this indulgent treat! Here are some delightful ideas to elevate your dessert experience.
Garnishes
- Whipped coconut cream: A dollop of whipped coconut cream adds a light, creamy element that balances the richness of the cake.
- Chocolate drizzle: Drizzling melted dairy-free chocolate over individual slices creates an eye-catching presentation and enhances the chocolate flavor.
- Chopped nuts: Sprinkling chopped peanuts or walnuts on top provides an extra crunch and complements the peanut butter beautifully.
Side Dishes
- Vanilla ice cream: The classic combination of warm cake and cold ice cream creates a delightful contrast in temperatures and flavors.
- Fresh fruit salad: A light fruit salad featuring berries or bananas offers a refreshing counterpoint to the rich cake.
- Dairy-free milkshakes: Pairing with a thick, creamy milkshake made with dairy-free ice cream emphasizes the dessert vibe and makes it extra special.
- Coffee or tea: A warm cup of coffee or herbal tea can complement the rich flavors of the cake while providing a cozy finish to your meal.
Enjoy creating this decadent Reese’s Peanut Butter Earthquake Cake! It’s sure to become a favorite among friends and family alike.

Make Ahead and Storage
This Reese’s Peanut Butter Earthquake Cake is not only a delightful treat, but it also shines when it comes to meal prep! You can easily make it ahead of time and store it for later enjoyment, making it perfect for gatherings or simply satisfying your sweet tooth throughout the week.
Storing Leftovers
- Allow the cake to cool completely before storing.
- Cover the cake with plastic wrap or aluminum foil to prevent it from drying out.
- Store at room temperature for up to 3 days or in the refrigerator for up to a week.
Freezing
- Cut the cake into individual portions for easy thawing.
- Wrap each piece tightly in plastic wrap, then in aluminum foil to prevent freezer burn.
- Freeze for up to 3 months. When ready to enjoy, thaw overnight in the refrigerator.
Reheating
- Preheat your oven to 350°F (175°C).
- Place a slice of cake on a baking sheet and cover loosely with aluminum foil.
- Heat for about 10-15 minutes or until warmed through. Alternatively, you can microwave individual slices for about 20-30 seconds.
FAQs
Here are some common questions you might have about making this fabulous dessert:
Can I use a different type of cake mix for the Reese’s Peanut Butter Earthquake Cake?
Absolutely! While chocolate cake mix pairs beautifully with peanut butter, you can experiment with vanilla or even red velvet cake mix if you’re feeling adventurous.
How do I ensure my Reese’s Peanut Butter Earthquake Cake has a gooey center?
To achieve that deliciously gooey center, be sure not to overbake the cake. Start checking for doneness at 35 minutes; a toothpick should come out mostly clean but might have a few moist crumbs attached.
Can I replace the cream cheese in this recipe?
Yes! If you prefer a non-dairy option, you can substitute the cream cheese with a plant-based cream cheese alternative that suits your taste.
What if I don’t have powdered sugar on hand?
If you find yourself without powdered sugar, you can make your own by blending granulated sugar in a blender or food processor until fine. Just use this homemade version in equal amounts as called for in the recipe.
Final Thoughts
I truly hope you enjoy creating this Reese’s Peanut Butter Earthquake Cake as much as I do! It’s not just a dessert; it’s an experience filled with rich flavors and delightful textures that are sure to impress family and friends alike. So go ahead and whip up this indulgent treat—your taste buds will thank you!
Reese’s Peanut Butter Earthquake Cake
Indulge in the delightful creation of Reese’s Peanut Butter Earthquake Cake, where gooey layers of rich chocolate and creamy peanut butter unite to create a dessert that’s perfect for any occasion. This cake is not only visually appealing but also incredibly satisfying with its warm, layered center that oozes flavor in every bite. Whether it’s a family gathering, a birthday celebration, or just a cozy night in, this cake will surely bring smiles all around. Plus, it offers the versatility for various adaptations—making it your go-to recipe for sweet cravings!
- Prep Time: 20 minutes
- Cook Time: 40 minutes
- Total Time: 1 hour
- Yield: Serves approximately 12 people 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 Reese’s Peanut Butter Cups, chopped
Instructions
- Preheat your oven to 350°F (175°C) and grease a 9×13-inch baking dish.
- In a large bowl, combine the chocolate cake mix, water, vegetable oil, and eggs until well blended. Pour into the prepared dish.
- In another bowl, mix together creamy peanut butter, softened cream cheese, melted unsalted butter, powdered sugar, and vanilla extract until smooth.
- Drop spoonfuls of the peanut butter mixture onto the chocolate batter and swirl gently with a knife.
- Sprinkle chopped Reese’s Peanut Butter Cups on top.
- Bake for 35–40 minutes or until a toothpick inserted comes out mostly clean. Let cool slightly before serving.
Nutrition
- Serving Size: 1 slice (85g)
- Calories: 363
- Sugar: 45g
- Sodium: 357mg
- Fat: 18g
- Saturated Fat: 7g
- Unsaturated Fat: 10g
- Trans Fat: 0g
- Carbohydrates: 47g
- Fiber: 2g
- Protein: 6g
- Cholesterol: 49mg
