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closeup image of slices of rich chocolatey mississippi mud cake with fudge brownies topped with melted marshmallows, pecans and thick chocolate fudge frosting

Mississippi Mud Cake

This Mississippi Mud Cake is over-the-top decadent with a brownie-like texture, melty soft marshmallows, pecans, and fudgy chocolate frosting. Once you taste your first piece, you will not be able to stop eating!
Print Recipe

Ingredients

For the Cake:

  • 1 ½ cups flour
  • 2 cups sugar
  • ½ cup unsweetened cocoa
  • 2 tsp baking powder
  • ½ tsp salt
  • 1 cup butter melted
  • 4 eggs slightly beaten
  • 1 tablespoon vanilla extract
  • 1 cup chopped pecans
  • 3 cups mini-marshmallows

For the Chocolate Frosting:

  • ½ cup melted butter
  • cup cocoa
  • cup evaporated milk
  • 1 teaspoon vanilla extract
  • 1 16-oz package powdered sugar

Instructions

For the cake:

  • Preheat oven to 350.
  • Grease and flour a 13x9 inch pan and set aside.
  • Combine the first 5 ingredients in a large mixing bowl.
  • Add butter, eggs, vanilla, and pecans, stir until smooth.
  • Pour into pan and bake for 25 to 30 minutes or until a wooden pick comes out clean.
  • Immediately sprinkle marshmallows and bake for another 2 minutes.
  • Carefully spread frosting over the top. Cool and cut into squares.

For the frosting:

  • Beat all ingredients with a whisk or electric mixer until spreading consistency.

Notes

Note: I found that you need to add extra milk to get this to be a little more thin than it turns out, otherwise you cannot really spread the frosting over the marshmallows.
Course: Dessert
Cuisine: American
Keyword: mississippi mud cake