Indulgent Reese’s Chocolate Peanut Butter Cup Earthquake Cake Recipe
Introduction
This Indulgent Reese’s Chocolate Peanut Butter Cup Earthquake Cake combines rich chocolate with creamy peanut butter in a decadent, crowd-pleasing dessert. Loaded with chunks of Reese’s cups and layered with peanut butter frosting, it’s perfect for any special occasion or just a sweet treat to satisfy your cravings.

Ingredients
- 1 standard chocolate cake mix
- 3 large eggs
- Water (or brewed coffee for richer flavor, as specified on cake mix)
- 1 package instant chocolate pudding mix
- 6-8 Reese’s Peanut Butter Cups, chopped
- Creamy peanut butter (or crunchy for texture)
- Powdered sugar
- Milk (optional, for frosting)
Instructions
- Step 1: Preheat your oven to 350°F (175°C). Grease a 9×13-inch baking dish to prepare for the cake.
- Step 2: In a large mixing bowl, combine the chocolate cake mix, eggs, and the required amount of water or brewed coffee. Stir gently until just combined, being careful not to overmix the batter.
- Step 3: Fold the instant chocolate pudding mix into the batter until it is evenly distributed.
- Step 4: Chop 6 to 8 Reese’s Peanut Butter Cups and gently fold them into the cake batter for bursts of peanut butter flavor.
- Step 5: Pour the batter into the prepared baking dish and spread it out evenly using a spatula.
- Step 6: In a separate bowl, mix creamy peanut butter with powdered sugar until smooth to create a thick drizzle. Zigzag this peanut butter mixture over the top of the cake batter.
- Step 7: Bake the cake in the preheated oven for 30 to 35 minutes, or until a toothpick inserted near the center comes out mostly clean with a few moist crumbs.
- Step 8: Let the cake cool in the pan for about 15 minutes. Meanwhile, prepare a simple frosting by mixing additional peanut butter, powdered sugar, and a little milk until spreadable. Once the cake has cooled, spread this frosting evenly over the top.
- Step 9: Sprinkle extra chopped Reese’s Peanut Butter Cups on top for an extra layer of indulgence before serving.
Tips & Variations
- For a deeper chocolate flavor, replace the water with brewed coffee when mixing the cake batter.
- Use crunchy peanut butter instead of creamy if you’d like added texture in the drizzle and frosting.
- If you prefer a less sweet frosting, reduce the powdered sugar slightly and add more peanut butter.
- Try adding a handful of chopped nuts, like pecans or walnuts, to the batter for extra crunch.
Storage
Store the cake covered at room temperature for up to 2 days, or refrigerate it for up to 5 days to keep the frosting and peanut butter cups fresh. Before serving, bring the cake to room temperature for the best texture. Reheat individual slices in the microwave for 10-15 seconds if desired.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I use homemade chocolate cake instead of a mix?
Yes, you can substitute your favorite homemade chocolate cake recipe. Just be sure to fold in the instant pudding mix and Reese’s cups as described to maintain the cake’s rich texture and flavor.
What if I don’t have instant chocolate pudding mix?
You can omit the pudding mix, but it helps give the cake extra moisture and fudginess. To replace it, you might add a bit of sour cream or Greek yogurt to the batter to keep it moist.
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Indulgent Reese’s Chocolate Peanut Butter Cup Earthquake Cake Recipe
- Total Time: 45-50 minutes
- Yield: 12 servings 1x
Description
Indulge in the decadent Reese’s Chocolate Peanut Butter Cup Earthquake Cake, a moist and rich chocolate cake infused with instant pudding and loaded with chopped Reese’s Peanut Butter Cups. This easy-to-make dessert features creamy peanut butter drizzled over the batter and a luscious peanut butter frosting topped with more peanut butter cups, creating an irresistible treat perfect for chocolate and peanut butter lovers.
Ingredients
Cake Batter
- 1 standard chocolate cake mix
- 3 large eggs
- Water (or brewed coffee for richer flavor) as per cake mix instructions
- 1 package instant chocolate pudding mix (approximately 3.9 oz)
- 6–8 Reese’s Peanut Butter Cups, chopped
Peanut Butter Drizzle
- Creamy peanut butter (about 1/2 cup)
- Powdered sugar (about 1 cup)
Frosting
- Creamy peanut butter (about 1/2 cup)
- Powdered sugar (about 1 cup)
- Milk (1-2 tablespoons, to adjust consistency)
- Additional chopped Reese’s Peanut Butter Cups for topping
Instructions
- Preheat Oven and Prepare Pan: Preheat your oven to 350°F (175°C). Grease a 9×13-inch baking dish thoroughly to prevent sticking.
- Mix Cake Batter: In a large bowl, combine the chocolate cake mix, eggs, and the required amount of water (or brewed coffee) according to the cake mix directions. Stir just until combined to avoid overmixing, which can toughen the cake.
- Incorporate Pudding Mix: Fold in the instant chocolate pudding mix evenly throughout the cake batter, adding moisture and richness to the cake.
- Add Peanut Butter Cups: Chop 6-8 Reese’s Peanut Butter Cups roughly and gently fold them into the batter, ensuring even distribution.
- Pour Batter in Pan: Transfer the batter to the greased baking pan and spread it out evenly for uniform baking.
- Prepare Peanut Butter Drizzle: In a separate bowl, mix creamy peanut butter with powdered sugar until smooth, creating a thick drizzle. Drizzle this mixture over the top of the cake batter in a zigzag pattern for added flavor and texture.
- Bake the Cake: Bake in the preheated oven for 30-35 minutes, or until a toothpick inserted near the center comes out mostly clean with a few moist crumbs but no wet batter.
- Cool and Prepare Frosting: Let the cake cool in the pan for about 15 minutes. Meanwhile, prepare the frosting by mixing creamy peanut butter, powdered sugar, and a little milk until the consistency is spreadable.
- Frost the Cake: Once the cake is sufficiently cooled, spread the peanut butter frosting evenly over the top.
- Garnish: Sprinkle additional chopped Reese’s Peanut Butter Cups on top for an extra indulgent finish.
Notes
- For richer flavor, substitute water with brewed coffee when mixing the cake batter.
- Do not overmix the cake batter to ensure a tender crumb.
- Adjust the amount of powdered sugar in the peanut butter drizzle and frosting to your preferred sweetness.
- Use creamy peanut butter for a smoother drizzle and frosting, but crunchy can be used if you prefer texture.
- Let the cake cool before frosting to prevent the frosting from melting.
- Store any leftovers covered at room temperature for up to 2 days or refrigerate for up to 5 days.
- Prep Time: 15 minutes
- Cook Time: 30-35 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Keywords: Reese’s, chocolate cake, peanut butter cup, earthquake cake, chocolate peanut butter dessert, pudding cake

