And I might have eaten a couple myself... they're so tasty. Do yourself a favor and make them!
The cake/cookie part comes from Brown Eyed Baker. What you need:1½ cups graham flour
¾ cup all-purpose flour
1½ teaspoons baking powder
½ teaspoon salt
4 tablespoons unsalted butter, at room temperature
4 tablespoons vegetable shortening
1 cup dark brown sugar
2 large eggs
½ cup buttermilk
2 tablespoons milk
1 teaspoon baking soda
1 teaspoon white vinegar
1 teaspoon vanilla extract
In a medium bowl, mix together the flours, baking powder and salt.
Beat the butter and shortening until pale yellow and creamy. Add in the brown sugar and beat 'til fluffy. Then beat in eggs and buttermilk.
Scoop onto a parchment lined cookie sheet. Bake at 375 for 9-10 minutes. Allow them to cool completely.
Then it's time to fill! For the chocolate ganache, you need:
12 oz package of semisweet chocolate chips/chunks
3/4 cup heavy cream
Put both in a microwave-safe bowl and heat for 30 second intervals (stirring betweens) until melted and smooth. Use a spoon to spread onto the whoopie pies. Don't try to pipe it on.... it's too runny and just goes everywhere. Spoon is the way to go.
And for the marshmallow cream. Ah, I love this stuff. The recipe is the same one I used for Hans' birthday cake, found here. Then just pipe it on!
Good luck trying to only eat one.