Introduction to Reese’s Peanut Butter Earthquake Cake
Hey there, fellow dessert lovers! Today, I want to share a truly scrumptious treat that is bound to elevate your dessert game: the Reese’s Peanut Butter Earthquake Cake. This delightful cake brings together two beloved flavors—chocolate and peanut butter—in an indulgent way. If you’re a busy mom or juggling a packed schedule, this cake is a quick solution for those sweet cravings. Trust me, it’s perfect for impressing your loved ones or just satisfying your own sweet tooth after a long day. Let’s dive into this delicious adventure and whip up something sweet!
Why You’ll Love This Reese’s Peanut Butter Earthquake Cake
This Reese’s Peanut Butter Earthquake Cake is more than just a treat; it’s a game-changer for busy lives! It comes together in under an hour, making it perfect for those last-minute dessert emergencies. Plus, the combination of rich chocolate and creamy peanut butter creates a flavor explosion that satisfies every sweet craving. You’ll find that each bite is a blissful experience, making this cake a favorite for family gatherings or casual get-togethers!

Ingredients for Reese’s Peanut Butter Earthquake Cake
Creating the Reese’s Peanut Butter Earthquake Cake requires a delightful selection of ingredients. Let’s take a quick look at what you’ll need for this heavenly dessert. Don’t worry, I’ll keep it short and sweet!
- Chocolate cake mix: A classic choice, it provides that rich base flavor. You can also use dark chocolate cake mix for an even deeper taste.
- Water: Simply used to moisten the cake mix and help it rise beautifully in the oven.
- Vegetable oil: This adds moisture and richness to the cake. If you’re feeling fancy, you can substitute it with melted coconut oil for a tropical twist.
- Large eggs: They help bind the ingredients together and give the cake that fluffy texture we all love.
- Creamy peanut butter: The star of the show! It brings a luscious, nutty flavor that perfectly complements the chocolate.
- Cream cheese: This adds a delightful tang and creaminess to the peanut butter mixture, elevating the overall flavor.
- Unsalted butter: Melted for extra moisture and richness. If you’re short on butter, you can swap in some applesauce for a lower-fat option.
- Powdered sugar: For that sweet, creamy finish in your peanut butter mixture. It works like magic in creating a smooth texture.
- Vanilla extract: A splash of vanilla brings everything together and enhances the flavor profile.
- Reese’s Peanut Butter Cups: Chopped and sprinkled on top for the ultimate peanut butter lover’s indulgence. You can use mini cups if you prefer smaller bites.
For exact measurements, you’ll find them at the bottom of the article, ready for your printing pleasure. Let’s gather these ingredients and get baking!

How to Make Reese’s Peanut Butter Earthquake Cake
Step 1: Preheat and Prepare
First things first, preheat your oven to 350°F (175°C). This ensures your cake bakes evenly and rises just right. While the oven warms up, grab a 9×13-inch baking dish and grease it well. You can use cooking spray or a bit of butter to coat the bottom and sides. This will keep your cake from sticking and make for a clean release. Trust me, nobody likes a beautiful cake that breaks apart on the way out!
Step 2: Mix the Cake Batter
In a large mixing bowl, combine the chocolate cake mix, one cup of water, half a cup of vegetable oil, and three large eggs. Whisk until the batter is smooth. Don’t fret if a few lumps remain; that’s totally normal! You want to mix it just enough for a rich, chocolaty batter. Once it’s ready, pour this luscious mixture into your prepared baking dish. Spread it out evenly, making sure every corner is covered. This is your cake’s foundation, and it’s going to be heavenly!
Step 3: Prepare the Peanut Butter Mixture
Now it’s time for the peanut butter magic! In another bowl, blend together one cup of creamy peanut butter, eight ounces of softened cream cheese, half a cup of melted butter, four cups of powdered sugar, and one teaspoon of vanilla extract. Mix until everything is smooth and creamy. You’ll know it’s ready when it resembles a fluffy peanut butter cloud. This mixture will swirl beautifully into the cake batter, adding that creamy goodness we love!
Step 4: Combine the Mixtures
Using a spoon, drop dollops of the peanut butter mixture all over the chocolate cake batter. Don’t worry about making it pretty—this is where the magic happens! Once you’ve added all the peanut butter goodness, take a knife and gently swirl it through the cake batter. This creates those beautiful marbled effects and ensures every bite has a bit of that peanut butter deliciousness. A gentle touch is key; you want to see some chocolate cake peeking through.
Step 5: Add the Reese’s Peanut Butter Cups
Now for the crowning glory! Sprinkle the chopped Reese’s Peanut Butter Cups evenly over the top of your cake batter. Each bite will be a delightful surprise bursting with chocolate and peanut butter goodness. Trust me, your heart will do a little happy dance at this point!
Step 6: Bake to Perfection
With everything prepared, slide the baking dish into your preheated oven. Bake for 35 to 40 minutes, or until a toothpick inserted into the center comes out mostly clean. Keep an eye on it; every oven is a little different! The cake should look set and slightly springy to the touch. Once baked, allow it to cool slightly before serving. Enjoy it warm or let it cool completely—just don’t forget that scoop of vanilla ice cream on top for an extra touch of indulgence!
Tips for Success
- Make sure all ingredients are at room temperature for the best mixing results.
- Don’t overmix the cake batter; a few lumps are okay!
- Swirl the peanut butter mixture gently into the cake for a beautiful marbled effect.
- Allow the cake to cool a bit before serving; it enhances the flavor.
- Store any leftovers in an airtight container for up to three days.
Equipment Needed
- 9×13-inch baking dish: Essential for baking; a sheet pan works too if you’re in a pinch.
- Mixing bowls: A couple of sturdy bowls are a must; plastic or glass works just fine.
- Whisk: For mixing batter; a fork will do in a hurry.
- Measuring cups and spoons: Accuracy is key; use a kitchen scale for precision if available.
- Spatula: Perfect for scraping the peanut butter mixture; a large spoon can also work!
Variations
- Nutty Twist: Add chopped nuts like pecans or walnuts for an extra crunch in the cake.
- Gluten-Free Delight: Swap the chocolate cake mix for a gluten-free version to make this cake accessible for everyone.
- Healthier Option: Use natural peanut butter and reduce the sugar in the peanut butter mixture for a lighter twist.
- Swirled Cheesecake: Blend in some cheesecake filling to the peanut butter mixture for a creamy and rich flavor.
- Flavor Fusion: Experiment with other types of candy, like Snickers or M&M’s, for a unique flavor combination.
Serving Suggestions
- Ice cream: Serve with a scoop of vanilla or chocolate ice cream for a creamy contrast.
- Fresh berries: Add a side of strawberries or raspberries for a fruity touch.
- Drizzle: Drizzle warm chocolate sauce or caramel over each slice for extra flair.
- Beverage Pairing: Pair with a decaf coffee or a glass of milk to balance the sweetness.
FAQs about Reese’s Peanut Butter Earthquake Cake
Can I make this cake in advance?
Absolutely! You can bake the Reese’s Peanut Butter Earthquake Cake a day ahead. Just store it in an airtight container at room temperature. When you’re ready to serve, warm it slightly in the oven.
What if I don’t have Reese’s Peanut Butter Cups?
No worries! You can use any chocolate candy, such as chopped Snickers or Milky Way bars, or even just skip the candy altogether. The cake will still be delicious!
Can I freeze this cake?
Yes, you can freeze the cake! Just wrap it tightly in plastic wrap, and then in aluminum foil. It can last up to three months in the freezer. When ready to enjoy, simply thaw it overnight in the refrigerator.
How do I keep the cake moist?
To keep the Reese’s Peanut Butter Earthquake Cake moist, store it covered or in an airtight container. Adding a slice of bread in the container can also help retain moisture!
Is this cake suitable for special diets?
While this cake is vegetarian, you can make it gluten-free by using a gluten-free chocolate cake mix. You can also reduce the sugar for a lighter dessert option. Be sure to check all ingredients for dietary restrictions!
Final Thoughts
There’s something utterly delightful about baking a Reese’s Peanut Butter Earthquake Cake. It’s not just about the luscious layers of chocolate and peanut butter; it’s a shared experience. When I take it out of the oven, the smell alone draws everyone in. Watching my family gather around the table, their eyes lighting up at the first bite, is truly priceless. This cake is more than a dessert; it’s a reason to celebrate the little moments in life. So, embrace your inner baker and treat your loved ones to this incredible concoction today. They’ll be raving about it for days!
Print
Reese’s Peanut Butter Earthquake Cake
- Prep Time: 15 minutes
- Cook Time: 40 minutes
- Total Time: 55 minutes
- Yield: 12 servings 1x
- Category: Dessert
- Method: Baking
- Cuisine: American
- Diet: Vegetarian
Description
A delicious and indulgent cake that combines chocolate and peanut butter flavors for a delightful dessert experience.
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 oven to 350°F (175°C). Grease a 9×13-inch baking dish.
- In a large bowl, mix the chocolate cake mix, water, vegetable oil, and eggs until well combined. Pour the batter into the prepared baking dish.
- In a separate bowl, combine the peanut butter, cream cheese, melted butter, powdered sugar, and vanilla extract. Mix until smooth.
- Drop spoonfuls of the peanut butter mixture over the cake batter. Use a knife to swirl the peanut butter mixture into the batter.
- Sprinkle the chopped Reese’s Peanut Butter Cups evenly over the top.
- Bake for 35-40 minutes, or until a toothpick inserted into the center comes out mostly clean.
- Allow the cake to cool slightly before serving. Enjoy warm or at room temperature.
Notes
- For a richer flavor, use dark chocolate cake mix.
- Serve with a scoop of vanilla ice cream for added indulgence.
Nutrition
- Serving Size: 1 slice
- Calories: 450
- Sugar: 40g
- Sodium: 300mg
- Fat: 20g
- Saturated Fat: 10g
- Unsaturated Fat: 5g
- Trans Fat: 0g
- Carbohydrates: 60g
- Fiber: 2g
- Protein: 8g
- Cholesterol: 70mg







