S'mores Whoopie Pies

In need of a summer campfire treat without the campfire? Then try these delicious s'mores whoopie pies. The chocolate cookie comes together quickly, and the filling is even easier. They are a bit messy and sticky (I found finger prints of filling all over the kitchen!), but that's part of the fun. This is also my W entry for this month's AlphaBakes challenge hosted by Caroline Makes. I can't wait to see what everyone else comes up with!

Ingredients

Chocolate Whoopie Pies
1/2 cup butter at room temperature
1/2 cup brown sugar
1/2 cup granulated sugar
1 egg
2 cups flour
1/2 cup of cocoa
1 tsp. baking powder
1 tsp. baking soda
1 cup buttermilk
1 tsp. vanilla 

Marshmallow Filling
1 cup marshmallow fluff
8 sheets of graham crackers

Instructions
Preheat oven to 375 degrees.
In a small bowl, mix together flour, cocoa powder, baking soda, and baking powder. Set aside.
In a large bowl, cream together butter and sugars. Add the egg and vanilla.
Gradually add in the flour mixture and buttermilk in stages, starting and ending with the flour.
Spoon dough onto baking sheets (size of the drops should be two tablespoons).
Bake 11-13 minutes. Allow to cool completely on a wire rack.

To make the filling, mixed together crushed graham crackers and marshmallow fluff. Spoon one tablespoon of filling onto a cookie and press another cookie on top to form the whoopie pie.

Yields 12 whoopie pies.