These aren't cookies, but I made these decadent brownies last night and took them to a party tonight. I substituted the peppermint extract in the batter because I got the regular Oreos. I used Ghiridelli chocolate. The only thing that could possibly improve upon them is to add a scoop of Blue Bell Homemade Vanilla ice cream to the top while they are still warm. This recipe is definitely staying in my collection.