Chocolate Peanut Butter Sandwich Cookies

For the Cookies:

1. Combine the chocolate and butter in a small saucepan over low heat until both have melted. Stir until smooth and then set aside.
2. In a small bowl, combine the flour, baking powder, and salt. Set aside.
3. In a large mixing bowl, beat together the eggs, sugar, and vanilla until the mixture begins to thicken.
4. Stir in the cooled chocolate mixture followed by the flour mixture.
5. Beat together until combined and let the batter rest for 10 minutes so that it can thicken up.
6. Preheat your oven to 375 degrees F.
7. Drop your batter by the tablespoonfuls onto a parchment-lined baking sheet. Make sure to leave about 2 inches of space between each cookie.
8. Bake in the oven for 8 minutes or until the edges are set and the cookies look slightly cracked.
9. Let them cool for 1 minute before removing them to a cooling rack.

For the Frosting Filling:

1. In a mixing bowl, combine the butter and peanut butter, beating well until smooth.
2. Slowly add in the powdered sugar, one cup at a time, beating well until smooth after each addition.
3. add in the milk and beat until the frosting is a spreadable consistency. If needed, add in more milk.
4. Stir in the mini chocolate chips.

To Assemble:

1. Pipe the frosting or place a generous spoonful onto the bottom of 6 cookies.
2. Top each cookie with the remaining cookies and press together to create a sandwich.
3. Serve and enjoy!