Peanut Butter Whoopie Pies

The other day I decided to make some cookies. Later I found that even though these aren't difficult to make, they are absolutely delicious! The filling can also be used to top other cookies or decorate cakes.
What made me choose these cookies was the combination of peanut butter and chocolate, it always gets me!
Martha Stewart came up with this recipe, and you can read more about it in her cookbook called Martha Stewart's Cookies.

Ingredients:
3 1/2 cups all-purpose flour
1 1/2 unsweetened cocoa powder
1 tablespoon baking soda
1 teaspoon baking powder
1 teaspoon salt
2 sticks unsalted butter at room temperature
2 cups sugar
2 large eggs
2 cups buttermilk
2 teaspoons vanilla extract

For the filling:
1 1/3 cups creamy peanut butter
2 sticks butter, softened
1 1/2 cups confectioner's sugar

1. Preheat the oven to 400 degrees F. Line two baking sheets with parchment paper.
Combine flour, cocoa powder, baking powder, baking soda, and salt. With an electric mixer beat together
the butter and sugar until light and fluffy. Add the eggs, buttermilk, and vanilla. Beat until combined.
on low speed add in the dry ingredients, and mix until combined

2. Drop 2 tablespoons of batter onto the prepared baking sheets. Bake until set, about 8 minuets.
let them cool for 5-10 minuets.

3. Filling: with an electric mixer, beat the peanut butter, the softened butter, and slowly add the confectioners sugar on high. Beat until smooth and creamy.

4. Gently spread the filling across a cookie, then put a cookie on the other side, sandwiching the filling.
Repeat until there aren't any cookies left.

5. Enjoy with a tall glass of milk!