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Mississippi Mud Cake

This cake has got to be one of my kiddos all time favorites!! I mean who doesn’t love a delicious homemade chocolate cake with melted marshmallows and warm decadent chocolate frosting on top. It’s a crowd pleaser and super EASY to make. It’s perfect for any occasion, birthday parties, any party or Sunday dinner. Honestly….. you don’t need any special reason to make this cake, if you have a chocolate cake craving, just make it.

I believe that it is called mud cake because with the melted marshmallows and chocolate, it can look just like mud. Actually, here’s a little history lesson for you. “This recipe of course originated from Mississippi, and the name “Mississippi mud cake” is derived from the dense dark cake that resembles the banks of the Mississippi River. It’s earliest known reference is dated back to 1975.”

Another classic variance to this cake is to add pecans (whole or chopped) with the marshmallows. In this picture, I did not make it with pecans because I knew that someone in my company was highly allergic to nuts. So that was a No!

This is another simple recipe where my boys love to help. My youngest boy can easily apply the marshmallows and pecans, as the older one got to mix everything together. Each boy got their own beater to lick, and mama got the bowl & spatula!! As you can see, not only is this cake easy to make, but it’s easy & DELICIOUS to clean up.

I hope you enjoy this Southern classic as much as we do. It can be served both room temperature or chilled.


Mississippi Mud Cake



  • 2 cups flour
  • 1 ½ cups sugar
  • ½ cup brown sugar
  • 1 ½ cups cocoa powder
  • 2 tsp baking powder
  • 2 tsp baking soda
  • 1 tsp salt
  • ¾ cup vegetable oil
  • 3 eggs
  • 2 tsp vanilla
  • 6 tbsp milk
  • ½ cup sour cream
  • ¾ cup boiling water
  • 10 oz mini marshmallows


  • 2 sticks butter
  • ½ cup cocoa powder
  • ½ cup milk
  • 4 tsp vanilla
  • 4-5 cups powdered sugar



  • Preheat the oven to 350 degrees.
  • Lightly grease a 9×13 baking dish.
  • In a large mixing bowl combine the dry ingredients: flour, sugars, cocoa powder, baking powder, baking soda and salt.
  • Add oil, eggs, vanilla, milk and sour cream. Mix well.
  • Carefully add the boiling water and mix.
  • Pour batter into the prepared pan.
  • Bake for 30 minutes.
  • Remove cake from oven and sprinkle marshmallows all over, completely covering it.
  • Return to the oven and bake for 3-5 minutes. Allow the cake to cool completely before drizzling frosting on top.


  • Melt butter in a small saucepan, add milk and cocoa powder and whisk well.
  • Cook for 3-5 minutes stirring constantly.
  • Remove from heat and stir in vanilla and powdered sugar.
  • Use an electric mixer to make the frosting smooth.
  • Drizzle warm frosting immediately over the cake.
  • Refrigerate the cake for 30 minutes or until the frosting has set. Remove from the refrigerator and store at room temperature.

Nutrition values are estimates, for exact values consult a nutritionist.

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