Roll your Oreo mixture into 1.5 inch cookie balls and gently place on the lined pan. (Note: if you make the cookie balls smaller, you will make more cookie ball truffles per recipe)
Refrigerate for about one hour to set.
Place peppermint candies in a sandwich bag and crush using a rolling pin until they are roughly crushed candy bits.
Remove truffles from the refrigerator and set aside.