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The BEST Mississippi Mud Cake

This is my favorite dessert of all time. My mother has been making this since I could walk and it never disappoints. The icing and marshmallow and chocolate layers melt in your mouth. This recipe does NOT disappoint.
Prep Time 30 mins
Cook Time 35 mins
Course Dessert
Cuisine American
Servings 12 people


  • 1 cup butter, melted
  • 1/2 cup cocoa (I use 100% pure cocoa)
  • 2 cups sugar
  • 4 eggs beaten
  • 1 1/2 cups all-purpose flour
  • dash salt
  • 1 teaspoon vanilla extract
  • 2 small jars marshmallow fluff


  • 4 cups powdered sugar
  • 1/2 cup evaporated milk
  • 4 tablespoons butter, softened
  • 1/3 cup cocoa
  • 1 teaspoon vanilla extract


  • Melt butter in the microwave.
  • Whisk in cocoa, sugar, eggs, flour, salt and vanilla. Spray a 9 x 13 pan with cooking spray. Add batter to the baking pan.
  • Bake in preheated 350 degree oven for 20-25 minutes if using jelly roll pan or about 30 to 35 if using 9 x 13 pan checking for doneness as ovens vary.
  • Remove from oven and spread marshmallows on top while the cake is still hot. Add this frosting over melted marshmallow.


  • Beat all the frosting ingredients together with mixer. Spread over the marshmallows on top of the cake.
  • Let cake cool completely before serving.



Note: I keep this cake in the refrigerator