I adapted this recipe from these Mint Chocolate Chip Cookies.
Thin Mint Mint Cookies - https://finalstockalert.com/thin-mint-mint-cookies/%3C/em%3E%3C/p%3E%3C/div%3E%3C/div%3E%3Cscript%3Ewindow.wprm_recipes = {"recipe-30397":{"type":"food","name":"Thin Mint Mint Cookies","slug":"wprm-thin-mint-mint-cookies","image_url":"https:\/\/thefoodcharlatan.com\/wp-content\/uploads\/2018\/03\/IMG_9472-e1524629304913.jpg","rating":{"count":10,"total":50,"average":5,"type":{"comment":0,"no_comment":0,"user":10},"user":0},"ingredients":[{"uid":0,"amount":"1","unit":"cup","name":"butter ","notes":"softened (2 sticks)","unit_id":4728,"id":755,"type":"ingredient","unit_systems":{"unit-system-1":{"amount":"1","unit":"cup","unitParsed":"cup"}}},{"uid":2,"amount":"1 & 1\/2","unit":"cups","name":"sugar","notes":"","unit_id":4726,"id":753,"type":"ingredient","unit_systems":{"unit-system-1":{"amount":"1 & 1\/2","unit":"cups","unitParsed":"cups"}}},{"uid":4,"amount":"2","unit":"large","name":"eggs plus 1 egg yolk","notes":"","unit_id":4729,"id":4888,"type":"ingredient","unit_systems":{"unit-system-1":{"amount":"2","unit":"large","unitParsed":"large"}}},{"uid":6,"amount":"1\/2","unit":"teaspoon","name":"peppermint extract","notes":"or more to taste","unit_id":4724,"id":2329,"type":"ingredient","unit_systems":{"unit-system-1":{"amount":"1\/2","unit":"teaspoon","unitParsed":"teaspoon"}}},{"uid":8,"amount":"10-15","unit":"drops","name":"green food coloring","notes":"","unit_id":4874,"id":2492,"type":"ingredient","unit_systems":{"unit-system-1":{"amount":"10-15","unit":"drops","unitParsed":"drops"}}},{"uid":10,"amount":"3 & 1\/4","unit":"cups","name":"all-purpose flour","notes":"spooned and leveled","unit_id":4726,"id":766,"type":"ingredient","unit_systems":{"unit-system-1":{"amount":"3 & 1\/4","unit":"cups","unitParsed":"cups"}}},{"uid":12,"amount":"2","unit":"teaspoons","name":"baking powder","notes":"","unit_id":4730,"id":822,"type":"ingredient","unit_systems":{"unit-system-1":{"amount":"2","unit":"teaspoons","unitParsed":"teaspoons"}}},{"uid":14,"amount":"1","unit":"teaspoon","name":"baking soda","notes":"","unit_id":4724,"id":823,"type":"ingredient","unit_systems":{"unit-system-1":{"amount":"1","unit":"teaspoon","unitParsed":"teaspoon"}}},{"uid":16,"amount":"1","unit":"teaspoon","name":"cream of tartar","notes":"","unit_id":4724,"id":760,"type":"ingredient","unit_systems":{"unit-system-1":{"amount":"1","unit":"teaspoon","unitParsed":"teaspoon"}}},{"uid":18,"amount":"1\/2","unit":"teaspoon","name":"kosher salt","notes":"","unit_id":4724,"id":805,"type":"ingredient","unit_systems":{"unit-system-1":{"amount":"1\/2","unit":"teaspoon","unitParsed":"teaspoon"}}},{"uid":20,"amount":"1","unit":"box","name":"Thin Mints","notes":"or grasshopper cookies","unit_id":4745,"id":4889,"type":"ingredient","unit_systems":{"unit-system-1":{"amount":"1","unit":"box","unitParsed":"box"}}},{"uid":22,"amount":"","unit":"","name":"chocolate chips","notes":"to top with (optional)","id":871,"type":"ingredient","unit_systems":{"unit-system-1":{"amount":"","unit":"","unitParsed":""}}}],"originalServings":"16","originalServingsParsed":16,"currentServings":"16","currentServingsParsed":16,"currentServingsFormatted":"16","currentServingsMultiplier":1,"originalSystem":1,"currentSystem":1,"unitSystems":[1],"originalAdvancedServings":{"shape":"round","unit":"inch","diameter":0,"width":0,"length":0,"height":0},"currentAdvancedServings":{"shape":"round","unit":"inch","diameter":0,"width":0,"length":0,"height":0}}}