Perfect Mississippi Mud Cake

Perfect Mississippi Mud Cake

Pettygirl 0

"This is a delightful, delicious Mississippi mud cake."

Ingredients 55 m {{adjustedServings}} servings 451 cals

Serving size has been adjusted!

Original recipe yields 20 servings



Amount per serving ({{servings}} total)

  • Calories:
  • 451 kcal
  • 23%
  • Fat:
  • 19.8 g
  • 30%
  • Carbs:
  • 67.1g
  • 22%
  • Protein:
  • 3.5 g
  • 7%
  • Cholesterol:
  • 44 mg
  • 15%
  • Sodium:
  • 158 mg
  • 6%

Based on a 2,000 calorie diet

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  • Prep

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  1. Preheat oven to 350 degrees F (175 degrees C). Grease and flour a 9x13-inch baking pan.
  2. Mix white sugar, flour, and salt together in a large bowl.
  3. Combine 1/2 cup butter, vegetable oil, 1/2 cup cocoa powder, and water in a saucepan; bring to a boil and stir until smooth. Remove from heat and stir into flour mixture.
  4. Beat buttermilk, eggs, 2 teaspoons vanilla extract, and baking soda together in a bowl; mix into chocolate mixture. Pour batter into prepared baking pan.
  5. Bake in the preheated oven until a toothpick inserted into the cake comes out clean, about 25 minutes. Cool slightly.
  6. Combine 1/2 cup butter, milk, and 3 tablespoons cocoa powder in a saucepan; bring to a boil and remove from heat. Whisk in confectioners' sugar and 1 teaspoon vanilla extract. Fold in pecans.
  7. Sprinkle marshmallows over slightly cooled cake; pour warm icing over marshmallows. Cool cake before serving.
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Reviews 5

  1. 5 Ratings


I made this for Father's Day. It is delicious and deserves 5 stars. The cake itself is very moist and I baked it 40 minutes instead of the 25 minutes as stated in the recipe. Made the frosting as it was baking so had to keep frosting warm until cake was ready for the marshmallows. Added marshmallows to the top as soon as it came out of the oven. Let it sit for a few minutes until marshmallow softened and then poured frosting on top.


If you're gonna go to all the trouble to make a REAL Mississippi Mud Cake then look no further! This is the best you'll get. OH SO RICH, DENSE AND YUMMY. MAKE IT! YOU WON'T REGRET IT...BUT YOUR HIPS MIGHT!!


Very nice cake. I decided to make cupcakes, as I was taking this to work, and ended up with a lot of cupcakes, so bear that in mind if you want cupcakes as well! I didn't make the frosting as I tend to believe most cake is sweet enough, and I felt this to be true with this cake. I did top about half the cupcakes with marshmallows, which kind of ended up making for a melted, crusty, gooey type top. Kind of interesting . . .I must say, though, that there was one cupcake left out of all the ones I took to work by the end of the day. Not bad at all, especially considering I also had on the tray a coffee cake. I count these as a success, and they were incredibly easy to make. Thanks for the recipe!