Heat oven to 375°F. Start with a pouch of Betty Crocker® peanut butter cookie mix and make it according to the package directions.
Add candy coated peanut butter pieces to the batter.
Use a large ice cream scoop to portion the cookies and place them on an ungreased cookie sheet. You can get 16 cookies out of one pouch.
Use a fork to flatten and add a crisscross pattern.
Bake for 9 minutes, or until they are almost ready to come out of the oven.
Press mini marshmallows into the cookies and put back into the oven for 2 to 3 minutes more.
Cool completely on a cooling rack.
Make the chocolate drizzle and drizzle over the cookies. Enjoy!