Ooey, Gooey & Fudgey Mississippi Mud Cake

Good old Huckleberry Finn would have been SO proud of this cake named after his favorite American river — Mississippi Mud Cake!  This cake is the February selection for “The Cake Slice Bakers” group and I just could not wait to make it. I have had this cake many times in many places with my husband and each and every time it has just been indescribably wonderful! Oh my goodness, this baby is so sweet, and oozy, gooey that you need some vanilla ice cream to bring it down a notch and/or a huge glass of milk or water to drink.


We always serve this warm straight out of the oven when the cake and marshmallows are still warm and oozing, similar to a lava cake! The photo above is perfect in that the slices come out looking like there is actual mud topping the cake.

This cake is chocolate paradise!

Yet the recipe is extremely easy!

Just a note: If you wait to eat this cake, it hardens up. If that happens, just pop it back in the oven to melt things down a bit more. But it really is better right out of the oven! And now, friends, after just one piece of this cake, it is TRULY back to my diet for me after indulging in this cake!

Ooey, Gooey Mississippi Mud Cake
For the cake:
  • 1 cup (2 sticks) butter
  • ½ cup cocoa powder
  • 4 eggs, beaten well
  • 1 tsp vanilla extract
  • 2 cups sugar
  • 1½ cups all purpose flour
  • ¼ tsp salt
For the frosting:
  • One 16 ounce box (3¼ cups) powdered sugar (I'd cut this in half to decrease the sweetness)
  • ½ cup cocoa powder
  • ½ cup (1 stick) butter, melted
  • ½ cup milk (add more if it is too thick to 'pour' over the cake)
  • 1 tsp vanilla extract
  • 4 cups mini marshmallows
To make the cake:
  1. Heat the oven to 350F. Grease and flour a 13x9 inch pan.
  2. In a medium saucepan combine the butter and cocoa powder and cook over medium heat, stirring now and then, until the butter is melted and the mixture is well blended.
  3. Stir in the beaten eggs, vanilla, sugar, flour, and salt and beat until the batter is well combined and the flour has disappeared.
  4. Quickly pour the batter into the prepared pan and bake for 25 minutes.
  5. While the cake bakes, prepare the frosting so it is ready to pour over the hot cake.
For the frosting:
  1. In a medium bowl combine the powdered sugar and cocoa powder; mix well.
  2. Add the melted butter, milk and vanilla; beat everything together well.
  3. Set aside until cake is done.
  4. Remove cake from the oven, scatter marshmallows over the top and then return the cake to the hot oven for about 3 minutes to soften the marshmallows.
  5. Place the cake, still in the pan, on a wire rack.
  6. Pour the frosting all over the marshmallow covered cake.
  7. Cut the cake into squares and serve.

Enjoy this rich, fudgey treat of a cake!

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  1. says

    OMG! I haven’t had tie to make cakes for this wonderful group, but I so wanted to make this one. You are right– ooey and gooey, which is my very favorite. Brava!
    PS: I made my very first Italian pasta, and loved it!

  2. says

    Wow! I’ve never had Mississippi mud cake, but it looks like something I should try ASAP! Thanks for visiting my blog earlier today, I will definitely start stopping by yours regularly, my Italian friend!

  3. says

    So happy to hear that you’ve lost 18 pounds! That is remarkable. I’m trying to lose some weight too, but the scale hasn’t budged yet. Keep up the good work:D

  4. says

    I have to be honest, I opened up your blog and I had no idea what that first picture was before I read the title but my first instinct was that I wanted to put my face in it. That can’t be normal right? Right?

  5. says

    I am from Tennessee and we make this cake all the time! This is one of those that I learned to make as a teen ager because boys just love it! Anytime you have a bunch of men/boys at a gathering make this and you will be the belle of the ball!~

  6. says

    Roz, Thanks for stopping by. I am glad to have found your blog too. Look forward to visiting often. This cake looks way too good! Are you in North or South Carolina?

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