01 - In a large mixing bowl, add the graham cracker cereal, mini marshmallows, and pretzels. Mix thoroughly to ensure even distribution of all components.
02 - Pour the chocolate chips or chopped milk chocolate into the bowl. Gently toss the mixture until chocolate is evenly dispersed throughout the dry ingredients.
03 - Serve the snack mix immediately for optimal freshness. For later use, transfer to an airtight container and store at room temperature for up to 1 week.