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Mississippi Mud Brownies Recipe

Indulge in these irresistible Mississippi Mud Brownies! This recipe, adapted from a Duncan Hines classic, delivers rich, fudgy brownies topped with a creamy marshmallow and chocolate frosting swirl. Perfect for satisfying any chocolate craving, these brownies are easy to make and guaranteed to be a family favorite. Halved frosting recipe for a slightly less sweet treat. Prepare for brownie bliss!

Prep Time 20 mins
Cook Time 105 mins
Calories 215.7 kcal
Protein 3g
Rating 4.7 (6 Reviews)
Mississippi Mud Brownies 12

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Chef Forktionary, author of this recipe

Recipe adapted from Food.com. Standardized by Forktionary.

Ingredients for Mississippi Mud Brownies

  • Fudge Brownie Mix
  • 2 large eggs
  • 1/3 cup water
  • Vegetable Oil
  • 7 ounces marshmallow creme
  • Milk Chocolate Frosting
  • 1/2 cup chopped pecans (optional)

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How to Make Mississippi Mud Brownies

  1. Preheat oven to 350°F (175°C).
  2. Grease and flour a 13x9-inch baking pan.
  3. In a large bowl, combine one box (15.25 ounces) Duncan Hines brownie mix, 2 large eggs, 1/3 cup water, and 1/3 cup vegetable oil.
  4. Stir with a spoon until well blended, about 50 strokes.
  5. Spread batter evenly in the prepared pan.
  6. Bake for 27-30 minutes, or until a wooden skewer inserted into the center comes out with moist crumbs.
  7. While brownies are still warm, spread 7 ounces marshmallow creme evenly over the top.
  8. In a microwave-safe bowl, combine 1 cup (6 ounces) chocolate frosting.
  9. Microwave in 15-second intervals, stirring after each, until smooth and melted (about 30-45 seconds total).
  10. Pour melted chocolate frosting over the marshmallow layer.
  11. Using a knife or toothpick, gently swirl the chocolate and marshmallow together to create a marble effect.
  12. Optional: Sprinkle 1/2 cup chopped pecans over the top before or after frosting (or bake 1/2 cup chopped pecans into the brownie batter).
  13. Let the brownies cool completely in the pan before cutting.
  14. Cut into 20-24 bars.

Nutrition Information (Approximate per serving)

Sodium

4 g

Sugar

92g

Fat

9g

Carbs

11g

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Sweets & Sides Desserts The Americas American Southern Vegetarian Game Day Recipes Baking

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Time To Make Course Preparation For Large Groups Desserts Easy Beginner Cook Cookies And Brownies Number Of Servings 4 Hours Or Less