In large mixing bowl beat together butter and sugars. Add peppermint oil, vanilla, and egg. In separate bowl mix together flour, cocoa powder, baking soda, and salt. mix flour mixture into wet mixture, and add chocolate chips.

form dough into tablespoon sized balls, place on slightly greased cookie sheets, and bake for 10 minutes.

when done let sit on sheet for 1 minute then move to cooling racks.

Enjoy!

Submitted by: Baker18