Mississippi Mud Brownies Recipe

Mississippi Mud Brownies Recipe

How To Make Mississippi Mud Brownies

Appease your sweet tooth with these deliciously gooey Mississipi mud brownies with marshmallows and pecans for added texture and depth of flavor.

Preparation: 30 minutes
Cooking: 30 minutes
Total: 1 hour



  • ½cupall-purpose flour
  • ½cupcocoa powder
  • ¾cupgranulated sugar
  • cuppacked light-brown sugar
  • ¼tspsalt
  • ½cupbutter
  • 2largeeggs
  • 1tspvanilla extract
  • ¾cupchopped pecans,divided
  • cupsmini marshmallows
  • ¼cupsalted butter
  • ¼cupmilk
  • ¼cupcocoa powder
  • ½tspvanilla extract
  • 2cupspowdered sugar


  1. Preheat oven to 325 degrees F.

  2. Line an 8×8-inch baking dish with parchment or aluminum foil and brush with melted butter.

  3. In a large mixing bowl, whisk together flour, cocoa powder, granulated sugar, brown sugar, and salt until well blended.

  4. Using a wooden spoon stir in melted butter and mix until combined. Add eggs and vanilla and stir until blended.

  5. Fold in ½ cup chopped pecans. Pour mixture into the prepared baking dish and bake in preheated oven for 35 to 37 minutes.

  6. Remove from oven and sprinkle top evenly with marshmallows then return to oven and bake about 4 minutes longer until marshmallows puff slightly.

  7. Pour and spread the chocolate frosting evenly over top, sprinkle top with remaining nuts. Allow to cool completely if desired or allow to cool slightly to have runny frosting. Cut into squares and store in an airtight container.

  8. To create the frosting, melt butter over medium-high heat, stirring frequently. Add milk and cocoa powder and cook whisking constantly until mixture has thickened for about 2 minutes.

  9. Remove from heat and using an electric hand mixer, stir in vanilla and powdered sugar. Use frosting immediately.


  • Calories: 379.06kcal
  • Fat: 18.18g
  • Saturated Fat: 8.51g
  • Trans Fat: 0.47g
  • Monounsaturated Fat: 6.37g
  • Polyunsaturated Fat: 2.12g
  • Carbohydrates: 55.32g
  • Fiber: 2.79g
  • Sugar: 44.70g
  • Protein: 3.74g
  • Cholesterol: 62.01mg
  • Sodium: 105.77mg
  • Calcium: 32.04mg
  • Potassium: 147.12mg
  • Iron: 1.40mg
  • Vitamin A: 112.92µg
  • Vitamin C: 0.07mg
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