This Reese’s Peanut Butter Earthquake Cake is a delicious and wacky cake made of rich chocolate cake, a sweet peanut butter layer, chocolate chips, and Reese’s Peanut Butter Cups. The cake may look like an earthquake, but the flavors will absolutely delight!
Reese’s Peanut Butter Earthquake Cake
We enjoyed making this Reese’s Peanut Butter Earthquake Cake. So simple to whip up using a chocolate cake mix and other ingredients. The cake doesn’t slice neatly and is more like a spoon cake, which is totally perfect. This is chocolate heaven!
Don’t miss these other delicious chocolate-peanut butter recipes! Reese’s Chocolate Peanut Butter Bark | Peanut Butter Stuffed Brownies | Peanut Butter Pretzel Chocolate Clusters | No Bake Reese’s Peanut Butter Bars
The Ingredients
Here’s what you’ll need to make Reese’s Peanut Butter Earthquake Cake (the exact measurements and full recipe instructions are below in the easy to print recipe card):
- Chocolate cake mix – use your favorite cake mix, such as dark chocolate or devil’s food. You’ll also need the ingredients needed to prepare the cake, such as eggs, oil, and water.
- Butter – we used regular salted butter, but unsalted will work too.
- Cream cheese – use full-fat cream cheese.
- Peanut butter – be sure to use creamy peanut butter for this recipe.
- Vanilla extract
- Powdered sugar
- Semi-sweet chocolate chips – semi-sweet is the right chocolate for this recipe as milk chocolate will burn during the baking time.
- Mini Reese’s Peanut Butter Cups – find these in the candy aisle of your grocery store.
How to Make Reese’s Peanut Butter Earthquake Cake
Preheat oven to 350F degrees. Grease a 9×13-inch glass baking dish with non-stick cooking spray.
Prepare chocolate cake mix according to package instructions and pour into the prepared 9×13-inch baking dish; set aside (do not bake yet).
In a large mixing bowl, beat the butter and cream cheese together with an electric mixer until smooth (at first it will look “globby” but keep beating until it is smooth and creamy). Add the peanut butter and vanilla extract and beat until smooth.
Add one cup of powdered sugar at a time to bowl and mixing well until fully incorporated and mixture becomes light and fluffy.
Scoop the peanut butter mixture on top of the unbaked chocolate cake batter.
Sprinkle with the semi-sweet chocolate chips and peanut butter cups over top of the peanut butter layer.
Bake the cake for 45-55 minutes or until the center of the cake is set.
Cool the cake slightly before cutting and serving.
What to Serve with Reese’s Peanut Butter Earthquake Cake
- Ice cream – vanilla, chocolate, peanut butter, or any flavor you enjoy.
- Whipped cream
- Chocolate chips
- Chopped peanut butter cups
- Caramel sauce
- Chocolate sauce
- Chocolate shavings
- Peanut butter sauce
- Marshmallows or marshmallow creme
How to Store Leftovers
Keep the leftover cake covered tightly with plastic wrap. It will stay fresh at room temperature for at least 3 days.
More Recipes You Will Enjoy
Reese’s Peanut Butter Earthquake Cake
Ingredients
- 1 chocolate cake mix plus ingredients needed to prepare (eggs, oil, water)
- 1/2 cup butter melted
- 8 ounce package cream cheese softened
- 1/2 cup peanut butter
- 1/2 teaspoon vanilla extract
- 4 cups powdered sugar
- 1/2 cup semi-sweet chocolate chips
- 1 cup mini Reese’s Peanut Butter Cups halved
Instructions
- Preheat oven to 350F degrees. Grease a 9×13-inch glass baking dish with non-stick cooking spray.
- Prepare chocolate cake mix according to package instructions and pour into the prepared 9×13-inch baking dish; set aside (do not bake yet).
- In a large mixing bowl, beat the butter and cream cheese together with an electric mixer until smooth (at first it will look “globby” but keep beating until it is smooth and creamy).
- Add the peanut butter and vanilla extract and beat until smooth.
- Add one cup of powdered sugar at a time to bowl and mixing well until fully incorporated and mixture becomes light and fluffy.
- Scoop the peanut butter mixture on top of the unbaked chocolate cake batter. Sprinkle with the semi-sweet chocolate chips and peanut butter cups over top of the peanut butter layer.
- Bake the cake for 45-55 minutes or until the center of the cake is set. Cool slightly before serving.
Last Step:
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