A method and device for making ice cream, the device comprising an outer shell with a closeable opening, a closeable inner shell. The outer shell and inner shell may be rigid or flexible. The outer shell may be made from TPU. The inner shall may be made from a foodsafe material such as polyethylene. A method for making ice cream comprising adding ice cream mixture to an inner shell； closing the inner shell； adding ice and salt to an outer shell； inserting the inner shell into the outer shell； closing the outer shell； and bouncing the outer shell on a trampoline.
