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Marshmallow Sheet Cake with Chocolate Ganache

July 3, 2014 by Peter Block 4 Comments

This post may contain affiliate links which means I may receive a commission for purchases made through links. I will only recommend products that I have personally used! Learn more on my Private Policy page.

This is going to be a two part post.  This is a dessert that I made two ways.  I am not sure where I thought up this idea but I saw the marshmallow on some food show and thought I would come up with a dessert recipe using marshmallow.  Chocolate seems like the perfect pairing.  But what about double chocolate?  What recipes do you have in your books with marshmallow?  After you see this recipe and pictures, I am sure you will want to try and make this Marshmallow Sheet Cake with Chocolate Ganache.  The layers make this dessert.  I love cooking with layers and think it is even cooler to photograph.  I believe the pictures really help you taste the layers.  This dessert was great before I added the ganache.  So if there is such a thing as too much chocolate, you can stop before adding the ganache.

Low close whole 500

Marshmallow Sheet Cake with Chocolate Ganache

 

60 degree split 500

Top down ganache 500

Ingredients (Cake recipe adapted from the Pioneer Woman):

  •  FOR THE CAKE:
  • 2 cups Flour
  • 2 cups Sugar
  • 1/4 teaspoon Salt
  • 4 Tablespoons (heaping) Cocoa
  • 2 sticks Butter
  • 1 cup Boiling Water
  • 1/2 cup Buttermilk
  • 2 whole Beaten Eggs
  • 1 teaspoon Baking Soda
  • 1 teaspoon Vanilla
ingred 500

Sheet Cake Ingredients

 

Marshmallows:

  • 1 bag of marshmallows
  • 2  tbsp butter
Marsh ingred 500

Marshmallow Ingredients

Ganache:

Ingredients (adapted from Ina Garten):
8 ounces good semisweet chocolate chips
1/2 cup heavy cream
1 teaspoon instant coffee granules

Ganache ingred 500

Ganache Ingredients

Directions:

Prepare a 18×13 sheet cake pan.  Meanwhile, in a mixing bowl, combine flour, sugar, and salt.  Separately, in a second saucepan, melt butter.  Then, add the cocoa to the butter and stir well.

Cocoa added 500

Cocoa Added

Mixed 500

Cocoa Melted

In another pot or in a measuring cup in the microwave, boil the water.  Let the mixture to boil and get good and hot. Then, turn off heat.  Pour over the water over the flour mixture, and stir lightly to cool.  In another measuring cup, pour the buttermilk and add beaten eggs, baking soda, and vanilla.  Stir this buttermilk mixture into butter/chocolate mixture.  Now, pour this mixture into the sheet cake pan

Pre-bake 500

Sheet Cake Pre-Bake

and bake at 350-degrees for 20 minutes.  A toothpick should go in and come out clean.

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Sheet Cake Post-Bake

For the marshmallow layer, melt the butter in a pot.  Once melted, pour int the marshmallows and stir until fully incorporated.

Marsh in pot 500

Marshmallows & Butter

Marsh melted 500

Marshmallows Melted

For the ganache, cook the chocolate chips, heavy cream and instant coffee in a double boiler over simmering water.  Keep stirring until the chocolate is fully melted and the mixture is smooth.

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Chocolate Melting

To assemble the cake, pour the melted marshmallow mixture over the sheet cake and put in the fridge to set.

Added to pan 500

Marshmallow Layer Added

The setting will take a couple of hours but overnight will be better.  After the 2 layers have set.  pour the ganache over the sheet cake and marshmallow and return to the fridge to set.

60 degree 500

Low close far piece 500

Serve and enjoy!





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Filed Under: Desserts Tagged With: cake, chocolate, cocoa, dessert, marshmallow

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Comments

  1. marcie

    July 3, 2014 at 1:18 pm

    This cake looks amazing, Peter, and I love anything topped with chocolate ganache. 🙂

    Reply
    • Chef Peter Block

      July 3, 2014 at 2:00 pm

      Marcie, I agree, you cannot go wrong with chocolate and more chocolate.

      Reply
  2. Janette@culinaryginger

    July 3, 2014 at 9:34 am

    Wow, this looks and sounds incredible. Chocolate and marshmallow a winning combination.

    Reply
    • Chef Peter Block

      July 3, 2014 at 2:00 pm

      Janette, I agree. This really is a good combination.

      Reply

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Hi everyone. My name is Peter and this blog is a labor of love expressing my passion for cooking and bringing family and friends around the kitchen table. I (now) make gluten free and mostly healthy recipes for home chefs that may just impress your friends. Read More…

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