In a microwave-safe bowl, combine the dark chocolate chips, natural peanut butter, and coconut oil. Microwave in 30-second intervals, stirring between each interval, until the mixture is smooth and fully melted. This should take about 1 to 1.5 minutes.
In a large mixing bowl, pour the melted chocolate and peanut butter mixture over the Love Bird grain-free cereal. Gently stir until all the cereal pieces are evenly coated.
In a separate bowl, combine the powdered sugar and vanilla protein powder. Mix well to ensure they are evenly combined.
Add the powdered sugar and protein powder mixture to the cereal mixture. You can either sprinkle it over the cereal and gently toss to coat or place the cereal mixture into a large resealable plastic bag, add the powdered sugar and protein powder mixture, seal the bag, and shake until the cereal is evenly coated.
Once the protein puppy chow is set, transfer it to an airtight container. Store any leftovers in the refrigerator for up to a week.
