Mississippi Mud Brownies

READY IN: 1hr 45mins
Recipe by Kathy in Fla

I found this recipe on the Duncan Hines web site. My family loved them. I only used half the chocolate icing as the recipe called for. Cook time includes cooling time.

Top Review by ChelseaW

I made these over the weekend and they are very yummy, but super sweet. I even omitted the chocolate frosting and swirled in some melted chocolate chips instead and it was still so sweet. I could only eat one at a time, but that's not such a bad thing!

Ingredients Nutrition

  • 595.33 g packageduncan hines family style chewy fudge brownie mix
  • 2 large eggs
  • 78.07 ml water
  • 78.07 ml vegetable oil
  • 198.44 g jar marshmallow cream
  • 295.73 ml duncan hines creamy home-style milk chocolate frosting
  • 118.29 ml chopped pecans (optional)


  1. Preheat oven to 350 °F.
  2. Grease bottom of 13x9-inch pan.
  3. Combine brownie mix, eggs, water and oil in large bowl.
  4. Stir with spoon until well blended, about 50 strokes.
  5. Spread in pan.
  6. Bake at 350 °F for 27 to 30 minutes or until set.
  7. Spread marshmallow cream gently over hot brownies.
  8. Place frosting in microwave-safe bowl.
  9. Microwave on high power for 15 to 30 seconds.
  10. Stir until smooth.
  11. Pour frosing over marshmallow cream.
  12. Swirl with knife to marbleize.
  13. You can either cook the pecans in the brownies or sprinkle them on top.
  14. Cool completely.
  15. Cut into bars.
  16. Makes 20 to 24 brownies.

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