Measure cereal and place in a large mixing bowl; set aside.

Pour protein powder, collagen, powdered sugar and crushed Oreos into a gallon-sized resealable bag; seal and shake to combine.

In a saucepan over medium heat (or in a bowl in the microwave for 2 minutes) add white chocolate chips and coconut oil. Stir until chocolate chips have melted and mixture is smooth.

Pour over cereal and toss to coat.

Carefully pour coated cereal mixture into the bag, seal and shake until completely coated.

Spread on parchment paper to cool, if desired