Beat in the cocoa powder and then the white flour. Slowly add the white flour until the dough is easy to shape into a cookie ball. You may need a few tablespoons up to 1/2 cup.
Knead in the chocolate chips. Barely cover a Mint oreo with the cookie mixture -- if you put too much cookie dough around the oreos they don't do as well.
If desired, top the cookies with a few more chocolate chips.