15 servings (serving size: 1 square)

If chocolate on chocolate is your thing, you will adore this mississippi mud cake. Rich and delicious, it will satisfy your sweet tooth for under 300 calories.

How to Make It

Step 1

Preheat oven to 350°.

Step 2

To prepare cake, combine 3/4 cup boiling water and 1/2 cup cocoa, stirring until blended. Cool. Place granulated sugar, 1/2 cup softened butter, and 1 teaspoon vanilla in a large bowl; beat with a mixer at medium speed until blended. Add cocoa mixture and egg substitute; beat well. Lightly spoon flour into dry measuring cups; level with a knife. Combine flour, baking soda, and 1/4 teaspoon salt in a bowl, stirring well. Add flour mixture and buttermilk alternately to sugar mixture, beginning and ending with flour mixture. Spoon batter into a 13 x 9-inch baking pan coated with cooking spray. Bake at 350° for 20 minutes or until a wooden pick inserted in center comes out clean. Top with marshmallows. Bake an additional 2 minutes or until marshmallows are soft.

Step 3

To prepare frosting, combine 1/4 cup cocoa, evaporated milk, 3 tablespoons melted butter, and 1/8 teaspoon salt in a medium, heavy saucepan over medium heat. Cook for 4 minutes, stirring frequently. Stir in powdered sugar and 1 teaspoon vanilla. Cook 2 minutes, stirring constantly. Drizzle frosting over cake. Cool. Cut cake into squares.

Ratings & Reviews

Love this Cake!

March 28, 2015
My family and I love this cake.  It's so easy to make and it's great to cut into small squares and take to a pot luck.  The icing makes the cake!! 

chicagomelissa's Review

September 06, 2012
These were quite yummy and got rave reviews from my friends. I made as cupcakes (made one dozen) - baked at 325 for the full 20 minutes. Moist, not crumbly, easy to make; I will certainly make these again.

madjack96's Review

January 31, 2011
This cake was very easy to make and received rave reviews from my friends. Will definitely make again.

janet222's Review

November 07, 2010
This recipe sounded great but after making it was too sweet, needed a crunch and no one that ate it enjoyed it at all. Would not recommend making it. A waste of time and money.

crusnock's Review

June 02, 2010
Delicious tasting and looking, this was a huge hit! I used 2 eggs instead of the egg substitute, b/c I didn't have any on hand. The cake turned out super-moist - will definitely make again!

LoriInNC's Review

February 28, 2010
This was yummy. To avoid a trip to the store, I subbed evaporated skim milk for the buttermilk in the cake mix, and 2 eggs for the egg substitute. This was a big hit with both adults and kids.

gemgirl42's Review

February 02, 2009
Tasty, easy, and good-looking dessert! Does not require much prep time but finished product looks like it took all afternoon. Had some problems with the bottom chocolate cake layer deflating while cooling so the entire cake sunk into the pan.

London1's Review

December 13, 2008
This cake was so simple and looked and tasted great. The cake wasn't too sweet, even with the marshmallows.