Yes, soft serve ice cream is made from a mix. It was originally developed by the founders of Dairy Queen; but, its appeal soon made this a phenomenon almost on par with the original "hard" ice cream.
Soft serve is not made from a mix. It come into a place as liquid form. Like milk or cream but in big crates. It is then hooked to a machine. The machine is designed to to freeze the liquid enough for soft serve.
