Line a cookie sheet with parchment paper and set aside
Place the Oreo cookies in a food processor and pulse until the cookies are finely ground.
Add cream cheese and peppermint extract and pulse until the mixture is well combined and smooth.
Using a cookie scoop or a spoon, scoop some dough into your hands and roll one-inch balls.
Place balls on cookie sheet.
Repeat steps until all dough is used.
Place the truffle balls in the freezer until well chilled, at least 1 hour.
Melt the white chocolate chips in microwave in 30-second intervals until melted and smooth. Stir in between each interval.
Remove Oreo cookie truffles from freezer and dip in melted chocolate. Tap excess chocolate off of each truffle.
Place coated truffle onto baking sheet and top with crushed candy canes.
Let cool completely so chocolate hardens.