Combine sorghum, butter, and marshmallows in a saucepan over low/medium heat until, marshmallows are completely melted. Stir constantly to be sure to not burn it! Heat to 250 degrees F.
Pour mixture over popcorn and mix until well coated. Allow to cool slightly.
Form popcorn into balls and serve. It is best to rub a little butter on your hands to keep the popcorn from sticking to your hands. Enjoy!