Chocolate Chocolate-Chip Peanut Butter Whoopie Pies

These...are my....ALL TIME FAVORITE cookies, EVER!

12oz miniature semisweet chocolate chips
2T. milk
3/4c butter, softened
1/4c creamy peanut butter
1 1/2c sugar
1/2tsp salt
1tsp baking soda
1tsp baking powder
2eggs
1/2c milk
1tsp vanilla
1/2c unsweetened cocoa powder
3c. flour

Filling:
1c butter
1c creamy peanut butter
1c marshmallow creme
2c powdered sugar

Preheat oven to 350 degrees. In a microwave safe bowl, combine 1c chocolate chips and 2T milk. Microwave 50% power 1-2minutes or unti melted; stir once. Set aside. In bowl beat butter and peanut butter with electric mixer until combined. Add sugar, baking soda, baking powder and salt; beat to combine. Add eggs, 1/2c milk, vanilla and melted chocolate; beat until combined. Add cocoa and flour; beat until combined. Stir in remaining chips. Drop by rounded spoonful onto ungreased cookie sheets. Bake 6-9 minutes or until tops are set. Cool on sheets 1 minutes then transfer to wire racks and cool completely.
In a bowl beat filling ingredients until combined. Too thin? Add powdered sugar. Too thick? Add a T. of milk at a time.
Spread a generous spoonful of filling on the bottom of one cookie and sandwich another on top!

So rich, so dreamy. <3