Chocolate Cake with Chocolate Ganache and Marshmallow Frosting

We are celebrating my grandson, Kyle's, 12th birthday today.  When I asked him what kind of dessert he wanted he thought a bit and then said, chocolate cake with marshmallow frosting.  Where he thought that up is beyond me, but I came through today and made him a Hershey's chocolate cake with a layer of chocolate ganache and marshmallow frosting from a recipe I found on the internet.  It tastes just like marshmallows too, so I am hoping for a thumbs up!  The candles and decorations will be put on at the party... This cake would be a great Valentines dessert too..especially in cupcake form with a sugared raspberry or cute heart shaped marshmallow on top and served with ice cream even.  Here is how I made it.

Bake a chocolate cake or cupcakes.  I made a scratch one..the Hershey's chocolate cake (recipe is posted on my blog if you just do a "cake" search it will come up.  Let it completely cool.

Chocolate Ganache:
In a medium saucepan, bring 1 cup of heavy cream to a simmer on medium high heat, remove from heat and add one 12 ounce bag of semisweet chocolate chips.  Let sit 5 minutes and then whisk until smooth.  Pour over cake, or dip cupcakes if you made those into it.  Let set/cool. 

Marshmallow Frosting:
Place a heat resistant glass bowl on top of a kettle with boiling water (not in the water-has to placed like a double boiler would) Add 8 egg whites, 2 cups of sugar, 3/4 tsp cream of tarter all at once into the bowl and whisk it continuously until the sugar has dissolved (1-5 minutes).  Remove from heat and beat with a mixer until stiff peaks form-about 5-7 minutes.  ADD 1 tsp vanilla, stirring it in to incorporate.  Frost or pipe onto cake or cupcakes.