Mississippi Mud Cake - The Southern Lady Cooks


Mississippi Mud Cake has been around for a long time and if you have never tried it you definitely should! If you love chocolate this cake is definitely for you. It really has the consistency of a brownie, because it’s made in a jelly roll pan. It doesn’t rise up like a traditional chocolate cake.  It is one of my favorite cakes because of all the chocolate and the marshmallow.  It reminds me of real good rich brownies!

Mississippi Mud Cake Ingredients Needed:


Cocoa (I use 100% pure cocoa)



All-purpose flour

Dash salt

Vanilla extract

Nuts of your choice( I use pecans or walnuts)

Miniature marshmallows (Could use marshmallow fluff)

Frosting Ingredients Needed: 

Powdered sugar

Evaporated milk



Vanilla extract

If you are taking this cake to an event, you can easily make it a day in advance. I honestly think it is better the following day! The combination of the frosting and the marshmallows just gets better with time.

RECIPE FEEDBACK: “My mom had been making one every year for Thanksgiving or Christmas and I have carried on that tradition for almost 30 years now. The only difference is that instead of the marshmallows i use the marshmallow cream and follow the recipe to the letter. I love pecans but prefer not to add any, still absolutely fabulous cake.” – Tony

“Best cake EVER!!! A favorite of my family’s as well. My sister-in-law gave it to me 30 years ago!!” – Jackie

“Had to have a piece today and it is delicious. My granddaughter helped me test it and she is in agreement that it is super good. It is like a nutty brownie with marshmallows on top and then fudge on top of that. Yummy!!”- Sandra

Full recipe in recipe card below.

Mississippi Mud Cake - The Southern Lady Cooks

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Print Recipe
5 from 30 votes

Mississippi Mud Cake

This is a classic cake that you'll want to make over and over again. It's always a hit!
Prep Time10 mins
Cook Time25 mins
Total Time35 mins
Course: Cake
Cuisine: American
Keyword: Mississippi Mud Cake
Servings: 1 cake
Author: The Southern Lady Cooks


  • 1 cup butter or margarine or 2 sticks or 16 tablespoons, 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
  • 1 1/2 cups nuts of your choice I use pecans or walnuts
  • 4 cups miniature marshmallows Could use marshmallow fluff

Frosting Ingredients

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


  • Melt butter in microwave. Whisk in cocoa, sugar, eggs, flour salt and vanilla. Fold in nuts. Spray a 17 x 11 x 1 inch jelly roll pan (or can make this in a 9 x 13 pawith cooking spray.
  • 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. (I put mine back in the oven for about 2 minutes to let the marshmallows begin to melt. Add frosting below over marshmallows.

Frosting Instructions

  • Beat all the frosting ingredients together with mixer. Spread over cake.
  • Let cake cool completely before cutting.


I keep this cake in the refrigerator.


If you like this recipe, you might also like my recipe for Texas Sheet Cake.

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