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4.8 from 45 votes

Mississippi Mud Cake

This Mississippi mud cake recipe is a delicious chocolate cake, topped with melted marshmallows and warm chocolate frosting.

Prep Time
10 mins
Cook Time
10 mins
Total Time
45 mins
Servings: 16
Calories: 304 kcal
Course: Dessert
Cuisine: American

Ingredients

  • 2 cups all-purpose flour
  • 2 cups sugar
  • 1/2 cup unsweetened cocoa powder
  • 1 tablespoon baking soda
  • 1 teaspoon salt
  • 2 eggs
  • 1 cup buttermilk
  • 1 cup hot water
  • 2/3 cup vegetable oil
  • 1 (10.5-ounce) bag mini marshmallows
Frosting
  • 1/2 cup butter
  • 4-5 tablespoons 2% milk
  • 3 tablespoons baking cocoa
  • 3-3/4 cups confectioners' sugar sifted
  • 1 tablespoon vanilla extract

Instructions

Cake
    Cup of Yum
  1. Preheat the oven to 350 degrees Fahrenheit.
  2. Mix flour, sugar, cocoa powder, baking soda, and salt in a large bowl.
  3. Add eggs, buttermilk, hot water, and oil. Beat with a hand mixer until combined and smooth (it should be runny). Pour into a greased 9x13-inch baking dish. Bake for 30 minutes.
  4. Remove cake from the oven and sprinkle the bag of marshmallows over the top, covering completely.
  5. Return to oven for a few extra minutes or until the marshmallows are slightly puffed and melted.
  6. Remove from oven and let cool.
Frosting
  1. Melt butter in a small saucepan over medium-high heat. Add milk and cocoa powder and whisk well.
  2. Cook until the mixture has thickened slightly (a few more minutes).
  3. Remove from heat and stir in vanilla and sifted powdered sugar. Use an electric mixer to make the frosting smooth.
  4. Drizzle warm frosting immediately over the cooled cake.
  5. Refrigerate the cake for about 30 minutes or until the frosting has set before cutting and serving.

Notes

  • STORE. Store it, covered, at room temperature or in the fridge.
  • FREEZE. Let it cool in the fridge for several hours before freezing. Wrap it tightly with plastic wrap and again with foil level and freeze for 1-2 months. Before serving, let it thaw for about an hour.

Nutrition Information

Calories 304kcal (15%) Carbohydrates 58g (19%) Protein 2g (4%) Fat 8g (12%) Saturated Fat 3g (15%) Cholesterol 10mg (3%) Sodium 274mg (11%) Potassium 123mg (4%) Fiber 1g (4%) Sugar 43g (86%) Vitamin A 125IU (3%) Calcium 50mg (5%) Iron 1.5mg (8%)

Nutrition Facts

Serving: 16Serving

Amount Per Serving

Calories 304

% Daily Value*

Calories 304kcal 15%
Carbohydrates 58g 19%
Protein 2g 4%
Fat 8g 12%
Saturated Fat 3g 15%
Cholesterol 10mg 3%
Sodium 274mg 11%
Potassium 123mg 3%
Fiber 1g 4%
Sugar 43g 86%
Vitamin A 125IU 3%
Calcium 50mg 5%
Iron 1.5mg 8%

* Percent Daily Values are based on a 2,000 calorie diet.