Step #1 In medium bowl stir this together Flour, cocoa powder & baking soda; set aside.
Step #2 Mix butter, granulated sugar, brown sugar, & 1/4 Cup of the peanut butter; beat this with mixer until well mixed.
Step #3 Add egg, milk & vanilla & beat well.
Step #4 Beat in flour mixture.
Step #5 Shape this dough into 32 balls.
Step #6 For filling mix powdered sugar & remaining 1/2 Cup peanut butter with a mixer until its smooth; you might have to knead it a couple of times if it crumbles.
Step #7 Shape this dough into 32 balls (these will be smaller).
Step #8 Flatten each chocolate dough ball.
Step #9 Top with peanut butter dough ball.
Step #10 Shape chocolate ball around peanut butter ball & roll it all into one big ball.
Step #11 flatten with bottom of glass.
Step #12 Drop the flattened cookie into granulated sugar to coat just the one side.
Step #13 Bake in preheated 350 for 8 mins.
Enjoy the Chocolate Cookies With Creamy Peanut Butter Filling recipe