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Mississippi Mudslide Bars

Mississippi Mudslide Bars are a chewy brownie base, topped with a fluffy marshmallow layer, and finished off with a rich and silky chocolate frosting. They are so addictive!

Prep Time
15 mins
Cook Time
15 mins
Chill
2 hrs
Total Time
2 hrs 45 mins
Servings: 24 Bars
Calories: 329 kcal
Course: Dessert , Snacks
Cuisine: American

Ingredients

Bars:
  • 1 cup butter melted
  • 2 cups sugar
  • 1/3 cup unsweetened cocoa powder
  • 3 large eggs
  • 1 teaspoon vanilla
  • 1/4 teaspoon salt
  • 2 cups flour
  • 4 cups miniature marshmallows
Frosting:
  • 2 cups semisweet chocolate chips
  • ¾ cup heavy whipping cream
  • 2 tablespoons butter
  • 1/4 teaspoon vanilla

Instructions

    Cup of Yum
  1. Preheat oven to 350 degrees and grease a 9x13 inch baking pan.
  2. In a large bowl combine melted butter, sugar, cocoa powder, eggs, and vanilla and mix until smooth. Add flour and salt and mix until incorporated. Spread batter evenly in prepared pan. Bake for 25-30 minutes until an inserted toothpick in the center comes out clean (a few loose crumbs are okay but no wet batter).
  3. Spread marshmallows in an even layer on top of the brownie layer. Return to oven and bake another 5-7 minutes until marshmallows are fluffy and beginning to lightly brown. Allow to cool while you prepare the frosting.
  4. In a microwave-safe glass bowl combine chocolate chips and heavy cream and microwave on half power for 2 minutes at a time, stirring after each, until smooth. Stir in butter and vanilla til smooth. Pour mixture over marshmallows. Chill at least 2-3 hours or until completely cooled before cutting into bars and serving.

Notes

  • Updated on April 18, 2021
  • Originally Posted on April 29, 2016

Nutrition Information

Calories 329kcal (16%) Carbohydrates 40g (13%) Protein 3g (6%) Fat 18g (28%) Saturated Fat 11g (55%) Cholesterol 54mg (18%) Sodium 120mg (5%) Potassium 130mg (4%) Fiber 2g (8%) Sugar 27g (54%) Vitamin A 412IU (8%) Vitamin C 1mg (1%) Calcium 23mg (2%) Iron 2mg (11%)

Nutrition Facts

Serving: 24Bars

Amount Per Serving

Calories 329

% Daily Value*

Calories 329kcal 16%
Carbohydrates 40g 13%
Protein 3g 6%
Fat 18g 28%
Saturated Fat 11g 55%
Cholesterol 54mg 18%
Sodium 120mg 5%
Potassium 130mg 3%
Fiber 2g 8%
Sugar 27g 54%
Vitamin A 412IU 8%
Vitamin C 1mg 1%
Calcium 23mg 2%
Iron 2mg 11%

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