Add freeze-dried strawberries to a food processor and blend until finely powdered.

In a bowl, mix strawberry powder with powdered sugar until evenly combined.

Transfer the strawberry sugar mixture to a 1-gallon freezer bag and set aside.

Melt white chocolate chips in the microwave using 30-second intervals, stirring between each, until smooth.

Place cereal in a large bowl and gently fold in melted white chocolate until evenly coated.

Transfer coated cereal to the freezer bag with strawberry sugar. Seal and gently shake until fully coated.

Spread the Strawberry Shortcake Puppy Chow on a baking sheet and refrigerate for 15 minutes to set.

Store in an airtight container and enjoy.