Reese’s Chocolate Peanut Butter Earthquake Cake: 3 Irresistible Gooey Delights.

Reese’s Chocolate Peanut Butter Earthquake Cake is my go-to dessert when a craving strikes but time is tight. I’m a professional chef who crafts crave-worthy desserts for busy moms and professionals—recipes that feel indulgent yet doable in real life. According to my About page, I design practical, crowd-pleasing sweets that travel well and disappear fast on the dessert table. This earthquake cake layers fudgy chocolate, swirls in creamy peanut butter, and studs the top with chopped Reese’s for crunch and warmth. It looks impressive, but the steps are simple enough for a weeknight win and a weekend crowd-pleaser. Ready to bake something gooey, gooey-good, and irresistibly shareable? Let’s dive in.

Table of Contents

What Make This Recipe It special

I reach for Reese’s Chocolate Peanut Butter Earthquake Cake when cravings hit.
I’m a professional chef who loves desserts that feel special.
This cake is doable, even on busy days, and it travels well.

A gooey centerpiece you’ll want to slice and share

This cake centers on a gooey chocolate core with a soft peanut butter swirl.
Chopped Reese’s pieces on top bring crunch and warmth.
It’s easy to slice and share at any gathering.

The perfect balance of chocolate and peanut butter in every bite

Deep chocolate notes meet a mellow peanut butter kiss in every bite.
I swirl them gently so pockets stay fudgy and flavorful.
You’ll taste comfort and quiet joy in each square.

Why You’ll Love This Recipe

A slice of gooey chocolate peanut butter earthquake cake with melted Reese’s on top
Gooey chocolate + peanut butter magic

I love how Reese’s Chocolate Peanut Butter Earthquake Cake comes together in a snap, yet it tastes like a party. The gooey pockets and creamy peanut butter swirls feel indulgent, not daunting.

Fast prep with a show-stopping finish

With a simple mix-and-swirl approach, I bake for a crowd without stealing a weekend. A warm slice draws oohs and compliments.

Family-friendly, crowd-pleasing texture and flavor

Even picky eaters ask for seconds. The fudgy core stays soft, peanut butter ribbons sparkle, and Reese’s pieces add the perfect crunch.

Ingredients Reese’s Chocolate Peanut Butter Earthquake Cake

Here are the core ingredients you’ll reach for when making Reese’s Chocolate Peanut Butter Earthquake Cake. I keep these staples on hand for quick weeknights. This chocolate-peanut butter hug comes together with fewer steps than you’d expect.

Exact quantities are printed at the bottom of the article for printing. You’ll find the full measurements there, so you can shop once and bake without guesswork. Having everything measured and ready makes weeknight desserts feel like a win. Trust me, it saves trips back to the pantry in the middle of a swirl.

This list focuses on pantry staples that deliver the chocolate-peanut butter hug the cake gives. Keeping a few extras on hand makes weeknights easy. With these, you’ll nail the texture and the swirl every time.

  • 1 box chocolate fudge cake mix (plus ingredients listed on box)
  • 1/2 cup creamy peanut butter
  • 8 oz cream cheese, softened
  • 1/2 cup unsalted butter, melted
  • 2 cups powdered sugar
  • 1 1/2 cups mini Reese’s, chopped
  • 1/2 cup semi-sweet chocolate chips
  • Optional: extra peanut butter drizzle for topping

Optional add-ins and practical substitutions

  • Nutty swaps: almond or cashew butter in place of peanut butter
  • Dairy-free option: use dairy-free cream cheese and butter
  • Gluten-free: choose a gluten-free chocolate fudge cake mix
  • Reese’s alternatives: chop regular Reese’s cups or peanut butter cups for more texture
  • Texture tweaks: a pinch of sea salt to balance sweetness

Quick note on quantities

For a printer-friendly print, the exact measurements and yield are listed at the bottom of this article. This helps you prep once and bake with confidence.

Close-up of a peanut butter swirled cake loaded with mini Reese’s
Loaded with Reese’s goodness

How to Make Reese’s Chocolate Peanut Butter Earthquake Cake

Step 1: Preheat, grease, and set up

Preheat your oven to 350°F (175°C) and grease a 9×13-inch baking pan. I like to line it with parchment for easy lifting and cleaner edges. Have your spatula, measuring spoons, and mixing bowls ready so you move fast.

Step2: Prepare the chocolate fudge cake base

Prepare the chocolate fudge cake mix according to the package instructions. Pour the batter into the prepared pan and smooth the top. While it bakes, you can mix the creamy peanut butter filling so it’s ready to swirl.

Step3: Make the creamy peanut butter filling

In a large bowl, beat cream cheese, melted butter, creamy peanut butter, and powdered sugar until smooth and creamy. The mixture should be thick and spreadable, not runny. If it looks stiff, add a teaspoon of milk to loosen it a bit.

Step4: Create the marble swirl with dollops

Drop spoonfuls of the peanut butter mixture over the cake batter in the pan. Use a knife or skewer to swirl the dollops into a marbled pattern. Don’t overmix; you want ribboned pockets of gooey goodness, not a uniform swirl.

Step5: Top with Reese’s pieces and chips

Sprinkle the chopped mini Reese’s and semi-sweet chocolate chips evenly over the top. The candy adds crunch, warmth, and pops of peanut butter in every bite. If you like extra texture, press some pieces gently into the surface so they stay put as it bakes.

Step6: Bake until edges are set and center stays gooey

Bake at 350°F for 40–45 minutes, or until the edges are set and the center stays a bit gooey. The cake should pull away from the sides slightly when it’s ready. If the center seems too jiggly, give it a few more minutes, but watch it carefully.

Step7: Rest, drizzle extra peanut butter, and slice

Let the cake cool for at least 15 minutes before slicing to allow it to set. Drizzle additional peanut butter on top if you crave extra richness. Slice into squares and serve warm or at room temperature for the gooeyest experience.

Tips for Success

  • I pre-measure ingredients and bring dairy to room temp for easy mixing.
  • I line and grease the pan for clean edges and quick release.
  • I dollop peanut butter in several spots and swirl gently for ribboned pockets.
  • I bake until edges set and center stays fudgy.
  • I rest 10 minutes before slicing for neat squares.

Pro tips for a perfect swirl and bake

  • I use a wide spatula to swirl without overmixing.
  • I let it rest a few minutes to keep gooey pockets intact.
  • I drizzle extra peanut butter while warm for shine.

Troubleshooting common issues with texture and bake

  • Center too runny? I bake 5–7 minutes longer, watching closely.
  • Edges browning too fast? I tent with foil near the end.
  • Swirl fading? I add a small extra peanut butter dollop next time.

Equipment Needed

Here’s the gear I reach for when making Reese’s Chocolate Peanut Butter Earthquake Cake.

Essential tools for Reese’s Chocolate Peanut Butter Earthquake Cake

  • 9×13-inch baking pan, greased or lined with parchment
  • Mixing bowls (large and medium)
  • Electric mixer or sturdy whisk
  • Spatula and spoon for dollops and swirls
  • Measuring cups and spoons
  • Parchment paper (optional for easy lift)

Alternatives if you don’t have something on hand

  • Grease the pan well and dust with cocoa powder if you skip parchment
  • Use a silicone spatula and a hand whisk if you don’t own an electric mixer
  • Any 9×13 pan works; bake time may shift slightly
Overhead shot of earthquake cake with melted chocolate and peanut butter drizzle
Gooey, melty, chocolate heaven

Variations

Variations let me tailor Reese’s Chocolate Peanut Butter Earthquake Cake to taste and needs. Whether you want more texture, less sugar, or a dairy-free option, here are flavor and dietary twists you can try. This gooey dessert still delivers the same crowd-pleasing magic.

Flavor and texture twists to try

  • Mocha swirl: Add 1 tablespoon instant espresso to the chocolate fudge cake mix and swirl a touch into the peanut butter filling for a mocha-chocolate kiss.
  • Crunchy contrast: Sprinkle crushed pretzels or chopped roasted peanuts over the top before baking for a salty crunch with every bite.
  • Salted caramel ribbon: Drizzle caramel sauce or melt-in caramel chips in ribbons around the swirl for a sweet-salty punch.
  • Double peanut butter: Increase peanut butter in the filling to 3/4 cup for a richer core, and dot extra peanut butter in dollops for more gooey pockets.
  • Reese’s variety: Mix in mini peanut butter cups or chopped Reese’s cups with the mini Reese’s for extra texture and melt-in warmth.
  • Nut-free version: Use sunflower seed butter instead of peanut butter to keep it nut-free; balance with a pinch more cocoa or a touch of vanilla.
  • White chocolate pop: Add white chocolate chips with the Reese’s pieces for a lighter, creamy contrast.

Healthy-ish or dietary-friendly swaps

  • Gluten-free: Use a gluten-free chocolate fudge cake mix and GF chocolate chips; check labels for cross-contact if needed.
  • Dairy-free: Swap cream cheese and butter for dairy-free cream cheese and plant-based butter; a splash of coconut milk helps loosen the filling if it stiffens.
  • Lower sugar: Reduce powdered sugar to 1 cup and adjust with a small amount of milk to keep the filling creamy.
  • Vegan option: Use plant-based cream cheese, butter, and a vegan chocolate fudge mix; confirm all add-ins are vegan.
  • Lower fat: Use light cream cheese and a bit less butter; you may need a splash of milk to keep the swirl smooth.
  • Yogurt boost: Exchange half of the cream cheese with Greek yogurt for tang and moisture.

Serving Suggestions

  • I serve warm squares with a scoop of vanilla ice cream for contrast.
  • I pair with black coffee, espresso, or a cold glass of milk.
  • Garnish with a light dusting of powdered sugar or cocoa.
  • Slice on a platter for easy sharing.
  • Add a ramekin of peanut butter for drizzle.

Make It Your Own: Reese’s Chocolate Peanut Butter Earthquake Cake Variations

I love how Reese’s Chocolate Peanut Butter Earthquake Cake invites creativity.
I try to tailor it to fit gluten-free or dairy-free needs without losing the gooey charm.
It’s a dessert you can adapt with the season or the pantry.

Gluten-free and dairy-friendly options for the same crave-worthy result

Yes, you can keep the magic with dietary swaps.
I test blends so the texture stays fudgy.
The trick is balancing moisture and creaminess even when you swap ingredients.

  • Gluten-free cake mix and GF chocolate chips ensure even bake and texture.
  • Dairy-free cream cheese and butter with a splash of dairy-free milk keep the swirl creamy.
  • Cross-contact awareness: read labels if you need strict dairy-free or gluten-free.
  • Nut-free option: swap peanut butter for sunflower seed butter for a milder nut-free result.
  • Balance with salt: a pinch of sea salt heightens flavor and reduces sweetness.

Seasonal twists to keep the treats fresh year-round

Seasonal twists keep this dessert exciting year-round.
I love pairing flavors with holidays and fresh fruit.
Small changes keep the base reliable and the results delicious.

  • Autumn spice: add 1/2 tsp cinnamon and 1 tbsp pumpkin puree to the batter.
  • Peppermint holiday: swirl in 1/4 tsp peppermint extract and top with crushed candy canes.
  • Berry brightness: swirl in 2 tbsp raspberry jam for a fruity poke.
  • Coconut-lime glow: fold in 2 tbsp shredded coconut and lime zest.
  • White chocolate kiss: add white chocolate chips with Reese’s pieces for a lighter bite.
  • Caramel drape: drizzle caramel and sprinkle a pinch of sea salt after baking.

These seasonal tweaks are kid-tested and crowd-approved.
You can mix and match to fit when you bake and who you serve.
The result remains the same gooey center with a party-ready crust.

Earthquake cake sliced in a pan showing rich swirls and candy pieces
Dessert dreams start here

FAQs

What is in an earthquake cake?

The “earthquake” comes from the marbled pockets of peanut butter that bake into the chocolate, creating gooey ribbons. It’s indulgent, yet forgiving enough for weeknights. The result is a dessert that tastes like a party in a pan.

What are the ingredients in Reese’s chocolate peanut butter?

The core players are a chocolate fudge cake mix, cream cheese, butter, peanut butter, powdered sugar, mini Reese’s, and semi-sweet chocolate chips. Optional: extra peanut butter for drizzling.
In this recipe, the box cake mix provides the fudgy base, while the filling blends cream cheese, butter, peanut butter, and sugar. The top gets chopped Reese’s pieces for texture and warmth, plus chocolate chips for bite.

Why is it called an earthquake cake?

The name comes from the dramatic marbling created when dollops of the peanut butter filling melt into the chocolate batter. It looks like tiny quakes as the cake bakes and sets. The result is a gooey, ribboned center that shifts with every slice.

Can you make cake with peanut butter?

Absolutely. Peanut butter pairs beautifully with chocolate in many cakes. You can swirl it into batter, mix it into fillings, or use it for frosting. For this dessert, peanut butter is the star in the filling and optional drizzle on top.
If you’re new to peanut butter cakes, start with a smooth, creamy variety and balance sweetness with a touch of salt to keep flavors vibrant.

Any tips for storing leftovers?

Leftovers store best in the refrigerator, in an airtight container, for up to 3 days. Warm a square in the microwave for 15–20 seconds for that gooey core. You can also freeze portions for up to a month; thaw in the fridge before serving.

Final Thoughts

The joy of a gooey, shareable slice

I smile every time I cut into Reese’s Chocolate Peanut Butter Earthquake Cake, the gooey ribbons twirling through rich chocolate.
It tastes like a celebration, but comes together fast—perfect for a tired night or a last-minute dessert.
The dish travels well, disappears fast, and leaves people asking for seconds.

Encouragement to tailor this recipe to your life and kitchen

This recipe thrives on flexibility, letting you scale for a crowd or fit into a busy weeknight.
Want dairy-free, gluten-free, or extra peanut butter? Swap ingredients, keep the swirl, and you’ll still get that gooey center.
Prep ahead by mixing the filling, refrigerating, then swirling and baking when you have a half-hour.

Print
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A slice of gooey chocolate peanut butter earthquake cake with melted Reese’s on top

Reese’s Chocolate Peanut Butter Earthquake Cake: 3 Irresistible Gooey Delights.


  • Author: Ryder Jameson
  • Total Time: 1 hour
  • Yield: 1215 squares 1x
  • Diet: Vegetarian

Description

Reese’s Chocolate Peanut Butter Earthquake Cake: a gooey, chocolate-forward dessert swirled with peanut butter and studded with chopped Reese’s pieces.


Ingredients

Scale
  • 1 box chocolate fudge cake mix (plus ingredients listed on box)
  • ½ cup creamy peanut butter
  • 8 oz cream cheese, softened
  • ½ cup unsalted butter, melted
  • 2 cups powdered sugar
  • 1½ cups mini Reese’s, chopped
  • ½ cup semi-sweet chocolate chips
  • Optional: extra peanut butter drizzle for topping

Instructions

  1. Preheat oven to 350°F (175°C) and lightly grease a 9×13-inch baking pan.
  2. Prepare the chocolate cake mix according to package instructions. Pour batter into the prepared pan.
  3. In a large bowl, beat together cream cheese, melted butter, peanut butter, and powdered sugar until smooth and creamy.
  4. Drop spoonfuls of the peanut butter mixture over the cake batter and gently swirl with a knife for a marbled effect.
  5. Sprinkle chopped Reese’s and chocolate chips evenly over the top.
  6. Bake for 40–45 minutes, or until edges are set but center is still slightly gooey.
  7. Let cool for at least 15 minutes before slicing. Drizzle with extra peanut butter if desired.

Notes

  • The cake is best served warm or at room temperature.
  • Leftovers can be stored covered in the refrigerator for up to 3 days.
  • For extra peanut butter flavor, drizzle additional peanut butter on top before serving.
  • Prep Time: 15 minutes
  • Cook Time: 45 minutes
  • Category: Dessert
  • Method: Bake
  • Cuisine: American

Nutrition

  • Serving Size: 1 square

Keywords: Reese’s Chocolate Peanut Butter Earthquake Cake, earthquake cake, Reese’s peanut butter, gooey chocolate dessert, peanut butter swirl

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