• Prepare the s'more puppy chow by bringing a large pot of water to a rolling boil. Place a glass heat-proof bowl on top of the pot to create a double broiler (don't let the bowl touch the water). Add the chocolate chips and peanut butter to the glass bowl. Continuously stir until the chocolate is fully melted. Add the marshmallows and continue stirring.
• Once the marshmallows are almost halfway melted, remove the chocolate mixture from the heat. Add the rice cereal and gently stir until the cereal is coated with the chocolate mixture. Set aside.
• Pour the confectioner's sugar into a large zip-top bag. Add the chocolate-covered rice cereal and seal the zip-top back. Shake the bag until each piece is coated with powdered sugar, about 1 minute. Set aside to cool.

Assembling the Trail Mix:

• Combine the puppy chow, Golden Grahams cereal, Teddy Grahams, mini marshmallows, and chocolate pieces in a large bowl or zip-top bag. Stir to combine.