This easy Mississippi Mud Cake with cake mix features gooey marshmallows and a homemade fudge frosting. It’s an easy yet impressive dessert that everyone will love!
This Easy Mississippi Mud Cake is an easy way to jazz up a box of chocolate cake mix!
It starts with chocolate cake with pecans, then a layer of toasted marshmallows, and finally a layer of chocolate fudge frosting.
It’s decadent without being extremely sweet, and it has lots of delightful textures like soft and tender cake, crunchy pecans, gooey marshmallows, and a smooth and creamy frosting.
It looks really similar to this Ding Dong Cake, but has a flavor all its own. Gooey marshmallow fans will LOVE this cake!
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Ingredients
- You’ll need chocolate cake mix, plus the ingredients to make the cake as listed on the box.
- We’ll use brewed coffee in place of the water for the cake mix, which amps up the chocolate flavor.
- Finely chopped pecans get mixed into the chocolate cake.
- You’ll need an entire bag of mini marshmallows for the middle layer.
- The frosting is a simple combination of powdered sugar, cocoa powder, butter, and milk.
How to Make Mississippi Mud Cake with Cake Mix
- Start by making a boxed cake mix according to package directions in a 13×9 inch pan. Substitute brewed coffee for the water in the directions.
- Add 1 cup of finely chopped pecans mixed with 1 teaspoon flour to the cake batter. (The flour prevents the pecans from sinking to the bottom of the cake.) Bake the cake in a 13×9-inch baking dish according to package directions.
- Pour one package of miniature marshmallows over the baked cake. Place the cake back in the oven for 5 minutes, or until the marshmallows are lightly toasted. Let cool.
- For the frosting, place the butter, powdered sugar, milk, and cocoa powder in a large bowl. Beat with a hand mixer until the frosting is smooth and creamy. Spread over the cake.
Frequently Asked Questions
Yes! The coffee complements the flavor of the chocolate cake mix, but it’s not necessary to use it for this cake.
Yes! To make this recipe even easier, you can substitute one can of chocolate frosting for the homemade frosting.
You can omit the pecans and flour from the recipe without any other changes.
More cake recipes made with cake mix
Love a good 13×9 inch cake? Me too. Here are a few more of my favorites that also start with a box of cake mix:
📖 Recipe
Easy Mississippi Mud Cake (with Cake Mix)
Ingredients
- 1 cup finely chopped pecans
- 1 teaspoon flour
- 1 box chocolate cake mix prepared according to package directions
- 1 cup brewed coffee
- 1 (16 oz) package mini marshmallows
- ½ stick butter, softened
- 3 cups powdered sugar
- ⅓ cup cocoa powder
- ⅓ cup milk
Instructions
- Preheat oven to 350°F. Spray a 13×9 inch pan with cooking spray.
- In a small bowl, stir together the pecans and flour.
- Prepare cake mix according to package directions, but substitute brewed coffee for the water that’s called for on the package. Stir in the flour-coated pecans.
- Bake the cake according to package directions, but underbake by 5 minutes.
- Remove from the oven and pour the mini marshmallows over the top. Place the pan back in the oven for 5 minutes, or until the marshmallows are very lightly toasted.
- Let the cake cool completely.
- Place the softened butter, powdered sugar, cocoa powder, and milk in a large bowl. Beat with a hand mixer until smooth and fluffy.
- Spread over the cake. Let sit for several hours until the frosting firms up slightly (or refrigerate for 30 minutes). Cut into slices and serve.
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