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A slice of chocolate cake on a plate. Fork on plate in background.

Easy Mississippi Mud Cake Recipe

Dense chocolate cake topped with gooey marshmallow cream and sweet chocolate icing is perfect for any chocolate lover.
Prep Time 15 minutes
Cook Time 30 minutes
Cooling Time 15 minutes
Total Time 1 hour
Course Dessert
Cuisine American
Servings 16 servings

Equipment

  • Equipment
  • Hand mixer or stand mixer
  • Large mixing bowl
  • 9 x 13 baking pan
  • Small Saucepan

Ingredients
  

For the cake:

  • 1 cup (224 g) unsalted butter, room temperature
  • 2 cups (384 g) granulated sugar
  • 4 eggs, room temperature
  • 1 teaspoon (4 g) vanilla extract
  • 1 ½ cups (180 g) all-purpose flour
  • ½ cup (40 g) cocoa powder
  • ¼ teaspoon (1.5 g) salt

For the Frosting/Icing:

  • 1 jar (7 oz) marshmallow cream
  • ½ cup (112 g) unsalted butter
  • ¼ cup (20 g) cocoa powder
  • ¼ cup (60 g) evaporated milk
  • 3-4 cups (360-480 g) powdered sugar, sifted

Instructions
 

  • Instructions
  • For the Cake:
  • Preheat oven to 350 degrees F and spray a 9 x 13 cake pan with non-stick cooking spray. Set aside.
  • In a large mixing bowl or a bowl of a stand mixer, beat butter and granulated sugar until creamed together. Add eggs and vanilla. Mix until well combined.
  • Add all-purpose flour, cocoa, and salt. Mix until combined.
  • Pour batter into the prepared 9 x 13 cake pan and bake for 25-30 minutes. Check for doneness by inserting a toothpick to the center of the cake. The cake is done when there are few moist crumbs on the toothpick.
  • While the cake is hot, spread 1 jar of marshmallow cream on top. This will allow the marshmallow cream to melt on the cake.
  • Chocolate Icing:
  • In a small sauce pan, bring butter, cocoa, and canned milk to a boil.
  • Mix in the powdered sugar until thick.
  • Pour icing on top of marshmallow cream and spread. This will create a marbled look.
  • Let the cake cool to your liking and enjoy! I recommend eating it with a glass of milk or a scoop of vanilla ice cream.

Notes

  • Serving size can be 16-20, depending on how big you slice the cake. 
  • When making the chocolate icing, start with 3 cups of powdered sugar and add another cup if needed. 
Keyword cake, chocolate cake, marshmallow cream, Mississippi Mud Cake