Line a baking sheet with parchment paper to prevent sticking.
In a microwave-safe bowl, combine the white almond bark or white chocolate with the shortening. Heat in the microwave in 30-second intervals, stirring in between, until smooth.
In a large mixing bowl, add the Chex cereal. Pour the melted chocolate over the cereal and gently fold until evenly coated.
Sprinkle the crushed peppermint candy canes into the bowl and gently mix until well distributed.
Sprinkle the powdered sugar over the mixture and toss gently to coat.
Pour the mixture onto the prepared baking sheet and spread out evenly. Allow it to cool completely.
Once cooled, break the Peppermint Buddies into clusters of your desired size.
