01 -
Line a large surface with parchment paper or a silicone mat.
02 -
In a microwave-safe bowl, combine the white chocolate chips and shortening. Microwave in 30-second increments, stirring between each interval, until the chocolate is melted and smooth. Stir in the peppermint extract.
03 -
Pour the melted chocolate mixture over the Chex cereal in a large bowl. Stir until the cereal is evenly coated.
04 -
Immediately sprinkle the crushed peppermint candies and candy canes over the chocolate-coated Chex. Stir well to distribute evenly.
05 -
Spread the mixture out on the prepared parchment paper or silicone mat. Let it cool and set completely.
06 -
Once set, break up any clumps and dust the puppy chow with powdered sugar.
07 -
Serve immediately or store in an airtight container.