Ah, the Reese’s Peanut Butter Earthquake Cake—this is a decadent, over-the-top dessert that lives up to the “earthquake” name. It’s basically a chocolate and peanut butter lovers’ dream: layers of chocolate cake, peanut butter, chocolate chips, and often a creamy peanut butter swirl, all baked together into a gooey, fudgy masterpiece.
Here’s a detailed guide to making it:
Ingredients (for a 9×13-inch pan)
For the cake:
- 1 box chocolate cake mix (or homemade chocolate cake batter)
- Ingredients needed for the cake mix (usually eggs, oil, water)
For the filling and mix-ins:
- 1 cup creamy peanut butter
- 1 (8 oz) package cream cheese, softened
- 1 cup powdered sugar
- 1 tsp vanilla extract
- 1 cup mini peanut butter cups, chopped
- 1 cup chocolate chips (semi-sweet or milk chocolate)
- Optional: ½ cup chopped Reese’s or peanuts for extra crunch
Optional topping:
- ½ cup chocolate chips, melted or as drizzle
- Whipped cream for serving
Instructions
- Preheat the oven:
- 350°F (175°C) and grease a 9×13-inch baking pan.
- Prepare the chocolate cake:
- Mix the chocolate cake batter according to package directions.
- Pour half of the batter into the prepared pan and spread evenly.
- Make the peanut butter cream cheese layer:
- Beat together peanut butter, cream cheese, powdered sugar, and vanilla until smooth and creamy.
- Spread over the chocolate cake layer.
- Add mix-ins:
- Sprinkle chopped mini peanut butter cups and chocolate chips over the peanut butter layer.
- Top with remaining cake batter:
- Dollop the remaining chocolate cake batter over the peanut butter layer in spoonfuls.
- Use a knife or spatula to gently swirl the layers together—it’s okay if it looks messy! This creates the “earthquake” effect.
- Bake:
- 35–45 minutes, or until a toothpick inserted comes out mostly clean (some fudgy streaks are fine).
- Let cool slightly in the pan.
- Optional topping:
- Drizzle melted chocolate over the top or sprinkle with extra chopped peanut butter cups.
- Serve warm with whipped cream if desired.
Tips & Variations
- Peanut butter lovers: Add a layer of peanut butter chips or swirl extra peanut butter on top before baking.
- Chocolate explosion: Use chocolate ganache drizzle on top after baking.
- Make it mini: Use muffin tins for individual “earthquake” cakes.
- Storage: Keeps covered at room temperature for 2 days or in the fridge for up to 5 days. Reheat slightly before serving for gooey perfection.
This cake is called an “earthquake” because of its messy, fudgy, layered chaos—and that’s exactly what makes it irresistible!
If you want, I can also give a quick microwave-friendly version that captures the same peanut butter-chocolate chaos in about 10 minutes. Do you want me to do that?
