1. Add the Rice Chex cereal to a very large mixing bowl and set aside. In a large zip-top bag or covered container, combine the powdered sugar, cheesecake pudding mix, and 1 tablespoon of the strawberry gelatin powder.

2. In a microwave-safe bowl, combine the white chocolate chips and butter. Microwave in 20-second intervals, stirring between each one, until the mixture is smooth.

3. Stir the remaining 2 tablespoons strawberry gelatin powder, vanilla extract, and salt into the melted white chocolate mixture until fully combined.

4. Pour the melted coating over the cereal and gently fold until the cereal is evenly coated.

5. Transfer the coated cereal to the prepared bag or container and shake until all of the pieces are covered in the powdered sugar mixture.

6. Spread the puppy chow onto a parchment-lined baking sheet or tray and sprinkle with the crushed graham crackers and crushed freeze-dried strawberries.

7. Let it sit for 15 to 20 minutes until the coating is set, then transfer to a serving bowl or airtight container.